Editing 1321 (section)

==== Byzantine Empire ====
* Spring &ndash; [[Byzantine civil war of 1321–1328|Byzantine Civil War]]: Co-Emperor [[Andronikos III Palaiologos]] flees [[Constantinople]] to [[Edirne|Adrianople]], where he sets up his court and initiates an uprising against his grandfather, [[Andronikos II Palaiologos|Andronikos II]]. [[Syrgiannes Palaiologos]] leads an expeditionary army towards the capital, forcing the emperor to negotiate.<ref>Nicol, Donald M. (1993). ''The Last Centuries of Byzantium, 1261–1453'' (second ed.), p. 157. Cambridge University Press. {{ISBN|978-0-521-43991-6}}.</ref><ref>Fine, John V. A. Jr. (1994). ''The Late Medieval Balkans: A Critical Survey from the Late Twelfth Century to the Ottoman Conquest'', p. 251. University Michigan Press. {{ISBN|0-472-08260-4}}.</ref><ref>Bartusis, Mark C. (1997). ''The Late Byzantine Army: Arms and Society 1204–1453'', p. 87. University of Pennsylvania Press. {{ISBN|0-8122-1620-2}}.</ref>
* Winter &ndash; Syrgiannes Palaiologos switches support to Andronikos II Palaiologos, fleeing to Constantinople. Rewarded with the title of ''[[megas doux]]'', he convinces the emperor to resume the war against Andronikos III.<ref>Kazhdan, Alexander (1991). ''The Oxford Dictionary of Byzantium'', p. 1997. Oxford University Press. {{ISBN|0-19-504652-8}}.</ref>