Editing John Peckham

{{Short description|Archbishop of Canterbury from 1279 to 1292}}
{{Use dmy dates|date=December 2024}}
{{Use British English|date=June 2013}}
{{Infobox Christian leader
| name = John Peckham
| archbishop_of = [[Archbishop of Canterbury]]
| image = Canterburycathedraljohnpeckhamtombeffigy.jpg
| imagesize = 
| alt = 
| caption = Effigy from Peckham's tomb in Canterbury Cathedral
| appointed = 25 January 1279
| ended = 8 December 1292
| predecessor = [[Robert Burnell]]
| successor = [[Robert Winchelsey]]
| consecration = 19 February 1279
| consecrated_by = [[Pope Nicholas III]]
| birth_date = {{circa|1230|lk=yes}}
| birth_place = 
| death_date = 8 December 1292
| death_place = [[Mortlake]], Surrey, Kingdom of England
| buried = [[Canterbury Cathedral]]
| religion = [[Catholic Church|Catholic]]
}}
{{Ordination
| ordained deacon by = 
| date of diaconal ordination = 
| place of diaconal ordination = 
| ordained priest by = 
| date of priestly ordination = 
| place of priestly ordination = 
| consecrated by = [[Pope Nicholas III]]
| co-consecrators = 
| date of consecration = 19 February 1279
| place of consecration = [[Rome]], [[Papal States]]
| elevated by = 
| date of elevation = 
| bishop 1 = [[John Darlington (bishop)|John Darlington]], [[Dominican Order|O.P.]]
| consecration date 1 = 27 August 1279
| bishop 2 = [[Oliver Sutton (bishop)|Oliver Sutton]]
| consecration date 2 = 19 May 1280
| bishop 3 = [[Richard Gravesend]]
| consecration date 3 = 11 August 1280
| bishop 4 = [[Thomas Bek (bishop of St David's)|Thomas Beck]]
| consecration date 4 = 6 October 1280
| bishop 5 = [[Richard Swinfield]]
| consecration date 5 = 7 March 1283
| bishop 6 = [[Thomas Ingaldesthorp]]
| consecration date 6 = 26 September 1283
| bishop 7 = [[Walter Scammell]]
| consecration date 7 = 22 October 1284
| bishop 8 = [[John Kirkby (bishop of Ely)|John Kirkby]]
| consecration date 8 = 22 September 1286
| bishop 9 = [[Henry Brandeston]]
| consecration date 9 = 1 June 1287
| bishop 10 = [[Gilbert of Saint Leofard]]
| consecration date 10 = 5 September 1288
| bishop 11 = [[Ralph Walpole]]
| consecration date 11 = 20 March 1289
| bishop 12 = [[William de La Corner]]
| consecration date 12 = 8 May 1289
| bishop 13 = [[William of Louth]]
| consecration date 13 = 1 October 1290
| bishop 14 = [[Thomas of Wouldham]], [[O.S.B.]]
| consecration date 14 = 6 January 1292
| bishop 15 = [[Bishop Thomas Button]]
| consecration date 15 = 16 March 1292
| bishop 16 = [[Nicolas Longespee]]
| consecration date 16 = 16 March 1292
}}
'''John Peckham'''{{efn|Pronounced {{IPAc-en|ˈ|p|ɛ|k|ə|m}}. His last name is also spelled '''Pecham'''.}} (c. 1230&nbsp;– 8 December 1292) was a [[Franciscans|Franciscan]] friar and [[Archbishop of Canterbury]] in the years 1279–1292.

Peckham studied at the [[University of Paris]] under [[Bonaventure]], where he later taught theology and became known as a conservative opponent of [[Thomas Aquinas]], especially regarding the nature of the soul. Peckham also studied optics and astronomy - his studies in those subjects were particularly influenced by [[Roger Bacon]] and [[Alhazen]].<ref name=DCL>{{cite book |last1=Lindberg |first1=David C. |title=Theories of Vision from Al-Kindi to Kepler |date=1976 |publisher=University of Chicago Press |location=Chicago |page=117}}</ref> Around 1270, Peckham returned to England, where he taught at the [[University of Oxford]], and was elected the Franciscans' provincial minister of England in 1275. After a brief stint in Rome, he was appointed Archbishop of Canterbury in 1279. His time as archbishop was marked by efforts to improve discipline in the clergy as well as reorganize the estates of his see. He served King [[Edward I of England]] in Wales.

As archbishop, Peckham oversaw attempts to close down Jewish synagogues, punish relapsing Jews from "returning to their vomit", and associating with Christians. He also opposed the loaning of money at interest and criticised [[Eleanor of Castile|Queen Eleanor of Castile]] for purchasing and abusing these loans to dispossess nobles of their property.{{efn|name=loanexplainer|The Crown, by overtaxing the Jewish community, forced Jewish moneylenders to sell their loan bonds at great discounts, allowing Eleanor and other courtiers to [[Eleanor of Castile#Land acquisition and unpopularity|profit greatly from their purchase]].}}

Before and during his time as archbishop, Peckham wrote several works on optics, philosophy, and theology, as well as writing hymns. Numerous manuscripts of his works survive. On his death, his body was buried in [[Canterbury Cathedral]], but his heart was given to the Franciscans for burial.

==Early life==
Peckham came from a humble family, possibly from [[Patcham]] in East [[Sussex]].<ref name=Moorman159>Moorman ''Church Life'' p. 159</ref> He was born about 1230 and was educated at [[Lewes Priory]].<ref name=DNB>Thompson "Pecham, John" ''Oxford Dictionary of National Biography''</ref> About 1250, he joined the [[Franciscans|Franciscan]] order at [[Oxford]].  He then went to the [[University of Paris]], where he studied under [[Bonaventure]] and became [[regent master]], or official lecturer, in [[theology]].<ref name=Lawrence146/><ref name=Leff183>Leff ''Paris and Oxford Universities'' p. 183</ref> While at Paris, he wrote a ''Commentary on Lamentations'', which sets out two possible sermons.<ref name=Douie269>Douie "Archbishops Pecham's Sermons and Collations" ''Studies in Medieval History'' p. 269</ref>

For years Peckham taught at Paris, where he was in contact with many of the leading scholars of his time, including Thomas Aquinas.<ref name=Lawrence146>Lawrence "Thirteenth Century" ''English Church and the Papacy'' pp. 146–147</ref> He famously debated Thomas on at least two occasions during 1269 and 1270, during which Peckham defended the conservative theological position, and Thomas put forth his views on the soul.<ref name=Thought294>Knowles ''Evolution of Medieval Thought'' p. 294</ref> The Thomist doctrine of the unity of form [[Condemnation of 1277#Condemnation of 1270|was condemned]] after these debates.<ref name=Leff228>Leff ''Paris and Oxford Universities'' p. 228</ref> His theological works later were used by his pupil [[Roger Marston]] who in turn inspired [[Duns Scotus]].<ref name=DNB/>

Peckham also studied other fields, however; and was guided by [[Robert Grosseteste]] and Roger Bacon's views on the value of experimental science.<ref name=Leff288>Leff ''Paris and Oxford Universities'' p. 288</ref> Where Peckham met Bacon is not known, but it would have been at either Paris or Oxford. Bacon's influence can be seen in Peckham's works on [[optics]] (the ''Perspectiva communis'') and astronomy.<ref name=DNB/>
In the field of optics, Peckham was influenced by [[Euclid]], [[Pseudo-Euclid]], [[Aristotle]], [[Augustine of Hippo|Augustine]], [[al-Kindi]], [[Avicenna]], [[Ibn al-Haytham|Alhazen]], [[Robert Grosseteste]], and [[Roger Bacon]]. Of these, historian David Lindberg argues, "Alhazen is by far the most significant, and Peckham could speak of his intention to 'follow in the footsteps' of the author".<ref name=DCL/>

==Return to England==
[[Image:Roger Bacon optics01.jpg|left|thumb|A manuscript of Roger Bacon's work on optics, which influenced Peckham's own works]]

===Reorganization of the archdiocese===
About 1270, he returned to England to teach at Oxford, and was elected provincial minister of the Franciscans in England in 1275.<ref name=BHOCant>Greenway "Canterbury: Archbishops" ''Fasti Ecclesiae Anglicanae 1066-1300: Volume 2'': Monastic Cathedrals (Northern and Southern Provinces)</ref> He did not long remain in that post, being summoned to Rome as ''lector sacri palatii,'' or theological lecturer at the papal palace.<ref name=Thought169>Knowles ''Evolution of Medieval Thought'' p. 169</ref> It is likely that he composed his ''Expositio super Regulam Fratrum Minorum'', a work that included information on preaching, a subject that Peckham felt was of great importance.<ref name=Douie270/> In 1279 he was appointed Archbishop of Canterbury by [[Pope Nicholas III]] who had prohibited the election of [[Robert Burnell]], Edward I's preferred candidate. He was provided (appointed by the pope to the see) on 25 January 1279 and consecrated on 19 February 1279.<ref name=Handbook233>Fryde, et al. ''Handbook of British Chronology'' p. 233</ref>

Peckham laid stress on discipline, which often resulted in conflict with his clergy. His first episcopal act was calling a council at [[Reading, Berkshire|Reading]] in July 1279 to implement ecclesiastical reform, but Peckham's specifying that a copy of ''[[Magna Carta]]'' should be hung in all [[cathedral]] and [[collegiate church]]es offended the king as an unnecessary intrusion into political affairs. Another ruling was on non-residence of clergy in their livings. The only exception Peckham was prepared to make on non-residence was if the clerk needed to go abroad to study.<ref name=Edward250>Prestwich ''Edward I'' p. 250</ref> At the [[Parliament of England|Parliament]] of Winchester in 1279, the archbishop compromised and Parliament invalidated any regulation of the council dealing with royal policies or power. The copies of Magna Carta were taken down.<ref name=Edward251>Prestwich ''Edward I'' p. 251</ref> One reason the archbishop may have backed down was that he was in debt to the Italian banking family of the [[Riccardi family|Riccardi]], who also were bankers to Edward and the pope, and Peckham was under threat of [[excommunication]] from the pope unless he repaid the loans.<ref name=Edward252>Prestwich ''Edward I'' p. 252</ref>

However, Peckham worked hard to reorganise the estates of the diocese, and held an inquiry in 1283 through 1285 into the revenues of the see. He set up administrative structures in the manors that divided them into seven administrative groups.<ref name=Lordship248>DeBoulay ''Lordship of Canterbury'' p. 248</ref> Peckham, though, was almost continually in debt, and because he was a Franciscan, he had no personal property to help with his living expenses. He had inherited the diocesan debts that his predecessor had allowed to accumulate, and never managed to clear them.<ref name=Moorman173>Moorman ''Church Life'' p. 173</ref>

===Relations with the Welsh===
{{See also|Conquest of Wales by Edward I}}
Notwithstanding his other actions, Peckham's relations with the king were generally good, and Edward sent him on a diplomatic mission to [[Llywelyn ap Gruffudd]] in Wales. In 1282 he attempted to mediate between the Welsh and King Edward, but given that Edward would not budge on the main issues, it was a hopeless mission.<ref name=Edward191>Prestwich ''Edward I'', p. 191–192</ref> In the end, Peckham excommunicated some of the Welsh who were resisting Edward. In service to King Edward, Peckham formed a low opinion of the Welsh people and laws.<ref name=Edward191/><ref name=Edward200>Prestwich ''Edward I'', p. 200</ref> Peckham visited the Welsh dioceses as part of his tour of all his subordinate dioceses. While there, Peckham criticised the Welsh clergy for their unchaste lives, conspicuous consumption, and heavy drinking. He also found the Welsh clergy to be uneducated, although he did order a Welsh-speaking suffragan bishop to be appointed to help with pastoral duties in the diocese of Coventry and Lichfield.<ref name=Walker87>Walker ''Medieval Wales'' p. 87</ref> Peckham also criticised the Welsh people as a whole, contrasting their pastoral economy with the farming-based economy of England, and finding the Welsh to be lazy and idle.<ref name=Given94>Given ''State and Society'' p. 94</ref>

As part of his diplomatic duties, Peckham wrote to Llywelyn, and in those letters the archbishop continued his criticisms of the Welsh people, this time condemning their laws as contrary to both the Old and New Testament. Peckham was particularly offended that Welsh laws sought to get parties to homicides or other crimes to settle their differences rather than the process of English law which condemned the criminal.<ref name=Given77>Given ''State and Society'' p. 77</ref>

Peckham also had problems with his subordinate [[Thomas Bek (Bishop of St David's)|Thomas Bek]], who was [[Bishop of St David's]] in Wales. Bek tried to revive a scheme to make St David's independent from Canterbury, and to elevate it to metropolitan status. This had originally been put forth by [[Gerald of Wales]] around 1200, but had been defeated by the actions of [[Hubert Walter]], then the Archbishop of Canterbury. Bek did not manage even the four-year fight that Gerald had managed, for Peckham routed him quickly.<ref name=Walker77>Walker ''Medieval Wales'' pp. 77–79</ref>

===Ecclesiastical matters===
Skirmishes with Edward over clerical privileges, royal power, Peckham's use of excommunication, and ecclesiastical taxation continued, but in October 1286, Edward issued a [[writ]] entitled ''Circumspecte Agatis'' which specified what types of cases the ecclesiastical courts could hear. These included moral issues, matrimonial issues, disputes about wills and testaments, the correction of sins, and slander and physical attacks on the clergy.<ref name=Edward257>Prestwich ''Edward I'', p. 257.</ref>

Peckham was very strict in his interpretations of canon law. He felt that Welsh laws were illogical and conflicted with Biblical teachings.<ref name=Edward186>Prestwich ''Edward I'' p. 186</ref> He also mandated that the clerical [[tonsure]] worn by the clergy should not just include the top of the head, but also have the nape and over the ears shaved, which allowed the clergy to be easily distinguished from the laity. To help with this, the archbishop also forbade the clergy from wearing secular clothing, especially military garb.<ref name=Moorman149>Moorman ''Church Life'' p. 149</ref> He also forbade an effort by the [[Benedictine]] order in England to reform their monastic rule, to allow more time for study and for more education for the monks. Peckham's reason was that they were against custom, but he may also have had concerns that these reforms would have drawn recruits away from the Franciscans.<ref name=Southern236>Southern ''Western Society'' p. 236</ref>

At an ecclesiastical council held at Lambeth in 1281, Peckham ordered the clergy to instruct their congregations in doctrine at least four times a year. They were to explain and teach the Articles of Faith, the Ten Commandments, the Works of Mercy, the Seven Deadly Sins, the Seven Virtues and the Sacraments.<ref name=HistMedLit396/> This command was issued as a canon, or law, of the council, and the group is known as the Lambeth Constitutions.<ref name=Devotion59>Swanson ''Religion and Devotion'' pp. 59–60</ref> Even later these constitutions were collected as the [[Ignorantia sacerdotum]].<ref name=HistMedLit396>Wallace ''Cambridge History of Medieval English Literature'' p. 396</ref> The six doctrines comprised the minimum theological knowledge the archbishop considered necessary for the laity to know.<ref name=HistMedLit548>Wallace ''Cambridge History of Medieval English Literature'' p. 548</ref> The constitutions, which were originally in Latin, were the basis and inspiration for pastoral and devotional works throughout the remainder of the Middle Ages, and were eventually translated into English in the 15th century.<ref name=Devotion59/>

The crime of "Pluralism", i.e. one cleric holding two or more benefices, was one of Peckham's targets,<ref name=Moorman220>Moorman ''Church Life'' pp. 220–221</ref> as were clerical absenteeism and laxity in the monastic life. His main method of fighting these was a system of visitation of his subordinate dioceses and religious houses, which he used with an unprecedented frequency. This often resulted in conflicts over whether or not the archbishop had jurisdiction to conduct these visits, but Peckham was also [[papal legate]], which added a layer of complexity to the resulting disputes. The numerous legal cases that resulted from his visitation policy strengthened the archiepiscopal court at the expense of the lower courts.<ref name=Lawrence137>Lawrence "Thirteenth Century" ''English Church & the Papacy'' p. 137</ref> Peckham also fought with [[Thomas de Cantilupe]], [[Bishop of Hereford]] over the right to visit subordinate clergy. The quarrel involved an appeal over the jurisdiction of the archbishop, that Thomas sent to Rome in 1281, but Thomas died before the case could be decided.<ref name=Lawrence128>Lawrence "Thirteenth Century" ''English Church & the Papacy'' p. 128</ref> Peckham also decreed that the clergy should preach to their flocks at least four times a year.<ref name=Moorman80>Moorman ''Church Life'' pp. 80–81</ref>

Peckham often was in conflict with his subordinate bishops, mainly because of his efforts to reform them, but Peckham's own attitude and handling of his clergy contributed to the problem.<ref name=Southern194>Southern ''Western Society'' pp. 194–196</ref> He once wrote to [[Roger de Meyland]], the [[Bishop of Lichfield|Bishop of Coventry and Lichfield]] "These things need your attention, but you have been absent so long that you seem not to care. We therefore order you, on receipt of this letter, to take up residence in your diocese, so that—even if you are not competent to redress spiritual evils—you may at least minister to the temporal needs of the poor."<ref name=QSouthern194>Quoted in Southern ''Western Society'' p. 194</ref> The historian [[Richard Southern]] says that Peckham's disputes with his suffragan bishops were "conducted in an atmosphere of bitterness and perpetual ill-will",<ref name=Southern194a>Southern ''Western Society'' p. 194</ref> which probably owed something to a "petulant strain in Peckham's character".<ref name=Southern194a/> Peckham's conflicts started because his own ideals were those of a Franciscan, but most of his clergy were concerned with more mundane and materialistic affairs. These strains between the archbishop and his subordinates were intensified by clashes over ecclesiastical and secular authority, as well as Edward's great need for income.<ref name=Southern211>Southern ''Western Society'' p. 211</ref>

===Measures against the Jews===
{{further|History of the Jews in England (1066–1290)#Edward I and the Expulsion}}
Like many other senior church leaders of the time, Peckham was hostile to the Jews, and regarded them as a danger to Christians. He pushed for greater segregation of Jews from Christians, alongside other contemporary church leaders, including [[Richard de Gravesend]] and [[Richard Swinefield]], a number of whom had previously worked alongside [[Simon de Montfort]]. He sought to eradicate usury, and to stop Jewish converts from returning to Judaism.<ref>Tolan ''England's Jews'' p. 170</ref>

On hearing that the Jews of London were being allowed to build a new Synagogue, "to the confusion of the Christian religion" Peckham lobbied to stop it. On 19 August 1282, he ordered [[Richard Gravesend]], Bishop of London, to compel the Jews of London, using every instrument of ecclesiastical censure, to destroy all their synagogues except one within a brief time period to be determined by the Bishop, claiming that the seven Synagogues they had were "cheating the Christian religion and causing scandal to many". In a second letter he congratulates the Bishop because the ''Judaica perfidia'' is being overcome by the bishop's attention and vigilance.<ref>Martin (ed.) ''Registrum epistolarum Fratris Johannis Peckham'' Vol. II  p. 407, no. cccxii; p. 410, no cccxvi</ref> He confirmed however, that they should be allowed one Synagogue.<ref>Tolan ''England's Jews''  p. 172-173</ref>

In 1281 Peckham complained to Edward that converts to Christianity were backsliding, saying that those "who had converted from the Jewish perfidy to the Christian religion have returned to their vomit, the Jewish superstition". The following year he report 17 Jewish apostates, and in 1284 Edward gave him a writ for 13 of them to be arrested. They took refuge in the Tower of London, and Robert Burnell refused to take action for fear of endagering relations with the London Jewry; the 13 seem to have escaped punishment. This however was following a pattern set by Peckham's superiors; the Pope had been complaining for some time about similar instances.<ref name=Tolan173>Tolan ''England's Jews''  p. 173</ref>

Peckham also clashed with Queen [[Eleanor of Castile|Eleanor]] stating to her that her use of loans from Jewish moneylenders to acquire lands was [[usury]] and a [[mortal sin]].<ref name=Edward125>Prestwich ''Edward I'' p. 125</ref><ref name=Tolan173/> He warned her servants that: "It is said that the illustrious lady queen, whom you serve, is occupying many manors, lands, and other possessions of nobles, and has made them her own property – lands which the Jews have extorted with usury from Christians under the protection of the royal court."<ref>Morris ''Great and Terrible King'' p. 225</ref>{{efn|name=loanexplainer}}

In Easter 1285, the prelates, (senior church leaders) of the [[Province of Canterbury]] under Peckham's leadership drew up complaints to Edward, two of which were regarding what they saw as lax restrictions on Jews. They complained about converts lapsing back to Judaism, and called for a crack down on usury, which although banned since 1275 under the [[Statute of the Jewry]], they believed was still being practiced, asking that "the Jews' fraud and malice be vigorously opposed". Edward replied that there was little that could be done,"because of their evilness". In response, the prelates expressed their shock and stated that the Crown was permitting Jews to "ensnare Christians through usurious contracts and to acquire the manors of nobles through the sink of usury". Edward was, they said, capable of stopping this "perversity", and advised that "through the threat of horrible punishments, which our lips will not name, he may strive to punish all userers".<ref name=Tolan174>Tolan ''England's Jews'' p. 174</ref>

These concerns were reiterated directly to Peckham in a letter from the Pope [[Honorius IV]], in November 1286, which Peckham and other church leaders used as guidance to make further calls against the Jews in the 1287 Synod of Exeter, again demanding the wearing of Jewish badges, banning Christians from working for Jews, from sharing meals with them, or using Jewish doctors. Jews were to banned from holding public office, or building new synagogues, and were to stay within their own homes on Good Friday.<ref name=Tolan1778>Tolan ''England's Jews'' p. 177-178</ref>

==Death and legacy==
A number of manuscripts of Peckham's works on [[philosophy]] and [[biblical commentary]] remain extant. Queen Eleanor persuaded him to write for her a scholarly work in French, which was later described as "unfortunately rather a dull and uninspired little treatise."<ref name=Edward123>Prestwich ''Edward I'' p. 123</ref> His poem ''Philomena'' is considered one of the finest poems written in its time.<ref name=HistMedLit362>Wallace ''Cambridge History of Medieval English Literature'' p. 362</ref>

Peckham died on 8 December 1292<ref name=Handbook233/> at [[Mortlake]] and was buried in the north transept, or the Martyrdom, of Canterbury Cathedral.<ref name=DNB/> His heart, however, was buried with the Franciscans under the high altar of their London church, [[Greyfriars, London]].<ref name=Burton120>Burton ''Monastic and Religious Orders'' p. 120</ref> His tomb still survives.<ref name=DNB/> He founded a [[St Mary's Church, Wingham|college at Wingham, Kent]] in 1286, probably a college of [[Canon (priest)|canons]] serving a church.<ref name=Lordship127>DeBoulay ''Lordship of Canterbury'' p. 127</ref>

==Works==
[[File:Peckham, John – Perspectiva, 1556 – BEIC 4636663.jpg|thumb|''Perspectiva'', 1556]]
A number of his works have survived, and some have appeared in print in various times:
{{div col|colwidth=28em}}
* {{Cite book|title=Perspectiva|volume=|publisher=Gilles Gourbin|location=Paris|year=1556|language=la|url=https://gutenberg.beic.it/webclient/DeliveryManager?pid=4636663}}
* {{Cite book|title=Perspectiva|volume=|publisher=eredi Giovanni Varisco |location=Venezia|year=1593|language=it|url=https://gutenberg.beic.it/webclient/DeliveryManager?pid=11402887}}
* ''Perspectiva communis''<ref>Lindberg ''John Pecham and the Science of Optics''</ref>
* ''Collectarium Bibliae''<ref name=DNB/>
* ''Registrum epistolarum''<ref>Martin, (ed).  ''Registrum epistolarum Fratris Johannis Peckham''</ref><ref name=Texts677>Mullins ''Texts and Calendars I'' section 6.77</ref>
* ''Tractatus de paupertate''<ref>Kingsford, et al. (eds.) ''Tractatus tres de paupertate''</ref><ref name=Texts132>Mullins ''Texts and Calendars I'' section 13.2</ref>
* ''Divinarum Sententiarum Librorum Biblie''<ref name=Douie270>Douie "Archbishops Pecham's Sermons and Collations" ''Studies in Medieval History'' p. 270</ref>
* ''Summa de esse et essentia''<ref name=DNB/>
* ''Quaestiones disputatae''<ref name=DNB/>
* ''[[Quodlibeta]]''<ref>Delorme, (ed.) ''Johannis de Pecham Quodlibet Romanum''</ref>
* ''Tractatus contra Kilwardby''<ref name=Texts132/>
* ''Expositio super Regulam Fratrum Minorum''<ref name=Douie270/>
* ''Tractatus de anima''<ref>Melani, (ed.) ''Tractatus de anima Ioannis Pecham''</ref>
* ''Tractatus de sphaera''<ref>MacLaren, (ed.) ''Critical Edition, with Commentary''</ref>
* ''Canticum pauperis''<ref name=DNB/>
* ''De aeternitate mundi''<ref>Potter, (ed.) ''Questions Concerning the Eternity of the World''</ref>
* ''Defensio fratrum mendicantium''<ref name=Texts132/>
{{div col end}}

Peckham is the earliest Archbishop of Canterbury to have his registers, the principal records of archiepiscopal administration, held at [[Lambeth Palace]] Library.<ref name=LPL>"Holdings of Lambeth Palace Library" ''Holdings of the Lambeth Palace Library''</ref>

==See also==

*[[List of Roman Catholic scientist-clerics]]

==Notes==
{{notelist}}

==Citations==
{{reflist}}

==References==
{{refbegin|colwidth=60em}}
* {{cite book |author=Burton, Janet |title= Monastic and Religious Orders in Britain: 1000–1300 |year=1994 |publisher=Cambridge University Press |series=Cambridge Medieval Textbooks |location=Cambridge UK |isbn=978-0-521-37797-3 }}
* {{cite book |editor=Delorme, Ferdinand M.|title=Johannis de Pecham Quodlibet Romanum |series=Spicilegium Pontificii Athenaei Antoniani |volume=1 |publisher=Pontificium Athenaeum Antonianum |location=Rome |oclc=65389252 |year=1938 }}
* {{cite encyclopedia |author=Douie, Decima |title=Archbishop Pecham's Sermons and Collations |encyclopedia=Studies in Medieval History Presented to Frederick Maurice Powicke |editor1=Hunt, R. W. |editor2=Pantin, W. A. |editor3=Southern, R. W. |publisher=Greenwood Press |location=Westport, CT |edition=reprint |orig-year=1948 |year=1979 |isbn=978-0-313-21484-4 |pages=269–282 }}
* {{cite book |author=DuBoulay, F. R. H. |title=The Lordship of Canterbury: An Essay on Medieval Society |year=1966 |publisher=Barnes & Noble |location=New York |oclc=310997 }}
* {{cite book |author1=Fryde, E. B. |author2=Greenway, D. E. |author3=Porter, S. |author4=Roy, I. |title=Handbook of British Chronology |edition=Third revised |publisher=Cambridge University Press |location=Cambridge, UK |year=1996 |isbn=978-0-521-56350-5 }}
* {{cite book |author=Given, James Buchanan |title=State and Society in Medieval Europe: Gwynedd and Languedoc under Outside Rule |publisher=Cornell University Press |location=Ithaca, NY |year=1990 |isbn=978-0-8014-9774-2 }}
* {{cite book |author=Greenway, Diana E. |section=Canterbury: Archbishops |title=Fasti Ecclesiae Anglicanae 1066-1300 |volume=2: Monastic Cathedrals (Northern and Southern Province) |year=1971 |publisher=Institute of Historical Research |section-url=http://british-history.ac.uk/report.asp?compid=33853 |access-date=30 March 2008 }}
* {{cite book |author1=Hillaby, Joe |author2=Hillaby, Caroline |title=The Palgrave Dictionary of Medieval Anglo-Jewish History |year=2013 |publisher=Palgrave Macmillan |location=Basingstoke |isbn=978-0-23027-816-5 }}
* {{cite web |title=Holdings of Lambeth Palace Library |url=http://www.lambethpalacelibrary.org/holdings/archbishopsarchives.html#registers |access-date=30 March 2008 |publisher=Church of England Record Centre |url-status=usurped |archive-url=https://web.archive.org/web/20080311232450/http://www.lambethpalacelibrary.org/holdings/archbishopsarchives.html#registers |archive-date=11 March 2008 }}
* {{cite book |editor1=Kingsford, Charles Lethbridge |editor-link1=Charles Lethbridge Kingsford |editor2=Little, A. G. |editor3=Tocco, Felice |title=Tractatus tres de paupertate |year=1910 |series=British Society of Franciscan Studies |volume=2 |publisher=Academic Press |location=Aberdeen |oclc=265525621 }}
* {{cite book |author=Knowles, David |title=The Evolution of Medieval Thought |author-link=David Knowles (scholar) |year=1962 |publisher=Longman |location=London |oclc=937364 }}
* {{cite encyclopedia |author=Lawrence, C. H. |encyclopedia=The English Church and the Papacy in the Middle Ages |title=The Thirteenth Century |editor=Lawrence, C. H. |pages=117–156 |location=Stroud, UK |publisher=Sutton Publishing |isbn=978-0-7509-1947-0 |year=1965 |edition=1999 reprint }}
* {{cite book |author=Leff, Gordon |title=Paris and Oxford Universities in the Thirteenth and Fourteenth Centuries: An Institutional and Intellectual History |publisher=Robert E. Krieger Pub. Co |location=Huntington, NY |year=1975 |isbn=978-0-88275-297-6 }}
* {{cite book |author=Lindberg, David C.|title=John Pecham and the Science of Optics: ''Perspectiva Communis'' |author-link=David C. Lindberg |publisher=University of Wisconsin Press |location=Madison, WI |isbn=978-0-299-05730-5 |year=1970 }}
* {{cite book |editor=Martin, C. T. |title=Registrum epistolarum Fratris Johannis Peckham, Archiepiscopi Cantuariensis |volume=II |publisher=Longmans |location=London |year=1884 }}
* {{cite book |editor=Martin, Charles Trice |title=Registrum epistolarum Fratris Johannis Peckham, Archiepiscopi Cantuariensis |year=1882–1885 |series=Rerum Britannicarum medii aevi scriptores |volume=77 |publisher=Longmans |location=London |oclc=931355861 }}
* {{cite thesis |editor=MacLaren, Bruce Robert |title=A Critical Edition, with Commentary, of John Pecham's ''Tractatus de sphera''  |year=1978 |type=PhD Dissertation |publisher=University of Wisconsin |location=Madison, WI }}
* {{cite book |editor=Melani, Gaudenzio |title=Tractatus de anima Ioannis Pecham |series=Biblioteca di Studi francescani |volume=1 |publisher=Edizioni Studi francescani |location=Florence |oclc=589574462 |year=1948 }}
* {{cite book |author=Moorman, John R. H. |author-link=John Moorman |title=Church Life in England in the Thirteenth Century |year=1955 |edition=Revised |publisher=Cambridge University Press |location=Cambridge |oclc=213820968 }}
* {{Cite book |author=Morris, Marc |title=A Great and Terrible King: Edward I and the Forging of Britain |publisher=Windmill Books |date=2009 |isbn=978-0-0994-8175-1 |location=London }}
* {{cite book |author=Mullins, E. L. C. |title=Texts and Calendars I: An Analytical Guide to Serial Publications |year=1958 |publisher=Royal Historical Society |series=Royal Historical Society Guides and Handbooks No. 7 |location=London |oclc=186242490 }}
* {{cite book |editor=Potter, Vincent G. |title= Questions Concerning the Eternity of the World |publisher=Fordham University Press |location=New York |isbn=978-0-8232-1488-4 |year=1993 }}
* {{cite book |author=Prestwich, Michael |title=Edward I |author-link=Michael Prestwich |publisher=Yale University Press |location=New Haven, CT |year=1997 |isbn=978-0-300-07157-3 }}
* {{cite book |author=Southern, R. W. |title=Western Society and the Church in the Middle Ages |author-link=Richard Southern |publisher=Penguin Books |location=New York |year=1970 |isbn=978-0-14-020503-9 }}
* {{cite book |author=Swanson, R. N. |title=Religion and Devotion in Europe, c. 1215-c. 1515 |publisher=Cambridge University Press |series=Cambridge Medieval Textbooks |location=Cambridge, UK |year=1995 |isbn=978-0-521-37950-2 }}
* {{cite encyclopedia |author=Thompson, Benjamin |title=Pecham, John (c.1230–1292) |encyclopedia=Oxford Dictionary of National Biography |volume=1 |url=http://www.oxforddnb.com/view/article/21745 |access-date=30 March 2008 |year=2004 |publisher= Oxford University Press |doi= 10.1093/ref:odnb/21745 }} {{ODNBsub}}
* {{cite book |author=Tolan, John |title=England's Jews: Finance, Violence, and the Crown in the Thirteenth Century |date=2023 |publisher=University of Pennsylvania Press |location=Philadelphia |isbn=978-1-5128-2389-9 |ol=OL39646815M}}
* {{cite book |author=Walker, David |title=Medieval Wales |publisher=Cambridge University Press |location=Cambridge, UK |year=1990 |series=Cambridge Medieval Textbooks |isbn=978-0-521-31153-3 }}
* {{cite book |editor=Wallace, David Foster |title=The Cambridge History of Medieval English Literature |publisher=Cambridge University Press |location=Cambridge, UK |year=2002 |isbn=978-0-521-89046-5 }}
{{refend}}

==Further reading==
{{refbegin}}
* {{cite book |author=Douie, Decima Langworthy |title=Archbishop Peckham |year=1952 |publisher=Clarendon Press |oclc= 775577}}
* {{cite journal |author=Knowles, M. D. |author-link=David Knowles (scholar) |title=Some Aspects of the Career of Archbishop Pecham Part I |date=January 1942  |journal=[[The English Historical Review]] |volume=57 |issue=225 |pages=1–18 |jstor= 553963 |doi=10.1093/ehr/LVII.CCXXV.1 }}
* {{cite journal |author=Knowles, M. D. |author-link=David Knowles (scholar) |title=Some Aspects of the Career of Archbishop Pecham Part II |date=April 1942 |journal=[[The English Historical Review]] |volume=57 |issue=226 |pages=178–201 |jstor= 554806 |doi=10.1093/ehr/LVII.CCXXVI.178 }}
* {{cite book |author=Pecham, John |title=John Pecham and the Science of Optics: Perspectiva Communis |editor= Lindberg, David C. |location=Madison, WI |publisher= University of Wisconsin Press |year= 1970 |oclc= 114863}}
* {{cite book |author=Pecham, John |title=Questions Concerning the Eternity of the World |editor=Potter, Vincent G. |year=1993 |publisher=Fordham University Press |location=New York |isbn= 978-0823214884}}
{{refend}}

==External links==
* Peckham's (1580) [http://lhldigital.lindahall.org/cdm/ref/collection/color/id/23373 ''Perspectivae communis''] – digital facsimile from the [[Linda Hall Library]]

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{{s-rel|ca}}
{{s-bef | before=[[Robert Burnell]] }}
{{s-ttl| title=[[Archbishop of Canterbury]] | years=1279–1292}}
{{s-aft| after=[[Robert Winchelsey]] }}
{{s-end}}

{{Archbishops of Canterbury|state=collapsed}}

{{Good article}}
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|portal2        = Christianity
|portal3        = England
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|commons-search = Category:John Peckham
|q              = y
|q-search       = John Peckham
|s              = y
|s-search       = 1911 Encyclopædia Britannica/Peckham, John
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|d-search       = Q1322939
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{{DEFAULTSORT:Peckham, John}}
[[Category:1230 births]]
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