Editing Pope Innocent IV (section)

==Early life==
[[File:Plaque pope Innocentius IV in Manarola.jpg|thumb|left|Square in Manarola named for Innocent IV]]
Born in [[Genoa]] (although some sources say [[Manarola]]) in an unknown year, Sinibaldo was the son of Beatrice Grillo and Ugo Fieschi, Count of [[Lavagna]]. The [[Fieschi]] were a noble merchant family of [[Liguria]].<ref>Romeo Pavoni, "L'ascesa dei Fieschi tra Genova e Federico II," in D. Calcagno (editor), ''I Fieschi tra Papato e Impero, Atti del convegno (Lavagna, 18 dicembre 1994)'' (Lavagna 1997), pp. 3–44.</ref> Sinibaldo received his education at the universities of [[University of Parma|Parma]] and [[University of Bologna|Bologna]] and may have taught [[canon law]], for a time, at Bologna.<ref>Maurus Fattorini, ''De claris Archigymnasii Bononiensis professoribus'' Tomus I pars I (Bologna 1769), pp. 344–348.</ref> The fact is disputed, though, as others pointed out, there is no documentary evidence of his teaching position.<ref>Agostino Paravicini-Bagliani, "Innocent IV," in Philippe Levillain (editor), ''The Papacy: An Encyclopedia'' Volume 2 (NY 2002), pp. 790.</ref> From 1216 to 1227 he was a canon of the [[Cathedral of Parma]].<ref>Pavoni, p. 6.</ref> He was considered one of the best [[canon lawyer|canonists]] of his time,<ref>V. Piergiovanni, "Sinibaldo dei Fieschi decretalista. Ricerche sulla vita," ''Studia Gratiana'' 14 (1967), 125–154.</ref> He wrote the ''Apparatus in quinque libros decretalium'', a commentary on papal decrees. He was called to serve [[Pope Honorius III]] in the [[Roman Curia]] where he rapidly rose through the hierarchy. He was  ''Auditor causarum'', from 11 November 1226 to 30 May 1227.<ref>Pavoni, p. 6. Emmanuele Cerchiari, ''Capellani papae et Apostolicae Sedis Auditores causarum sacri palatii apostolici'' Volumen II (Roma 1920), p. 9.</ref> He was then quickly promoted to the office of [[Vice-Chancellor of the Holy Roman Church]] (from 31 May to 23 September 1227), though he retained the office and the title for a time after he was named Cardinal.<ref>Pavoni, p. 6. Cerchiari, p. 10. [[Augustus Potthast]], {{lang|la|Regesta pontificum Romanorum}} I (Berlin 1874), no. 8039 (23 September 1227). As Vice-Chancellor he used the title ''Magister''. A successor appears in the records on 9 December 1227: Potthast, p. 939.</ref>