Editing 1321 (section)

=== October &ndash; December ===
* [[October 29]] &ndash; King [[Stefan Milutin]] dies after a 39-year reign. His son [[Stefan Konstantin]] claims the Serbian throne, but Konstantin's elder half-brother [[Stefan Dečanski|Stefan Uroš III]] starts a civil war and succeeds him.<ref>Fine, John V. A. Jr. (1994). ''The Late Medieval Balkans: A Critical Survey from the Late Twelfth Century to the Ottoman Conquest'', p. 263. University Michigan Press. {{ISBN|0-472-08260-4}}.</ref>
* [[October 31]] &ndash; Edward II captures [[Leeds Castle]] after [[Margaret de Clare, Baroness Badlesmere|Margaret de Clare]], wife of [[Bartholomew Badlesmere, 1st Baron Badlesmere|Bartholomew Badlesmere]] refuses [[Isabella of France|Queen Isabella]] admittance in her husband's absence. When the Queen seeks to force an entry, Lady Badlesmere instructs her archers to shoot at Isabella and her party, six of whom are killed. After Edward occupies the castle, Lady Badlesmere becomes the first woman to ever be imprisoned in the [[Tower of London]]. She will be freed on November 3, 1322.<ref>Costain, Thomas B (1958). ''The Three Edwards'', pp. 193–195.  The Pageant of England, New York: Doubleday and Company.</ref><ref>McKisack, May (1959). ''The Fourteenth Century 1307–1399'', p. 64. Oxford History of England. London: Oxford University Press.</ref><ref>Emery, Anthony (2006). "Southern England". ''Greater Medieval Houses of England and Wales 1300–1500'', p. 305. London: Cambridge University Press. {{ISBN|978-0-521-58132-5}}.</ref>
* [[November 10]] &ndash; [[Canonization of Thomas Aquinas]]: In Italy, a second inquiry begins at [[Fossanova]], as three commissioners (Pandulpho de Sabbello; Petrus Ferri, Bishop of Anagni; and Andreas, Bishop of Terracina) take testimony from over 100 witnesses until November 27.<ref name=Gerulaitis/>
* [[November 27]] &ndash; In northern Italy, Rinaldo dei Bonacolsi, [[List of rulers of Mantua|Duke of Mantua]], begins the [[Siege of Mirandola (1321)|siege of Mirandola]] against [[Francesco I Pico]], [[Duchy of Mirandola|Duke of Mirandola]]. Bonaclsi has Pico and his sons Francesco and Tommasino arrested and imprisoned in the [[Castel d'Ario]].<ref>''[https://archive.org/details/bub_gb_ML_POIXq2f8C/page/n161/mode/1up?view=theater Cronaca della nobilissima famiglia Pico scritta da autore anonimo]'' (Tipografia di Gaetano Cagarelli, 1875) p. 154</ref> The castle is besieged the next day and lasts 33 days.
* [[December 8]] &ndash;  Confronting the rebellion of [[Thomas, 2nd Earl of Lancaster|Thomas of Lancaster]], the [[Bartholomew Badlesmere, 1st Baron Badlesmere|Baron Badlesmere]], and [[Roger Mortimer, 1st Baron Mortimer of Chirk|Roger Mortimer]], King Edward II arrives in [[Cirencester]], then leads troops up the [[River Severn|Severn Valley]] from [[Gloucester]] against the rebels.<ref>Paul Doherty, ''Isabella and the Strange Death of Edward II'' (Robinson, 2003) p. 86</ref>
* [[December 26]] &ndash; Faced with an invasion of London during the rebellion of [[Thomas, 2nd Earl of Lancaster|Thomas of Lancaster]], by troops led by the English rebel, the [[Bartholomew Badlesmere, 1st Baron Badlesmere|Baron Badlesmere]], King Edward II of England offers safe conduct for any rebels who come over to the royalist side, but orders the Sheriff of Gloucester to arrest Badlesmere.<ref>Kathryn Warner, ''Edward II: The Unconventional King'' (Amberley Publishing, 2014) p. 152</ref>
* [[December 28]] &ndash; (Genko 1, 9th day of 12th month) In Japan, [[Emperor Go-Daigo]] begins direct government as the [[cloistered rule]] of former [[Emperor Go-Uda]] ceases.
* [[December 31]] &ndash; the Duke of Mantua completes the siege of Mirandola, taking control of the Duchy, and then orders the castle of Duke Francesco I Pico to be destroyed.<ref>Pompilio Pozzetti, ''Lettere Mirandolesi scritte al conte Ottavio Greco'', Vol. 3 (Tipografia di Torreggiani e compagno, 1835) p. 40</ref>