Editing 1211 (section)

==== Byzantine Empire ====
* [[June 17]] &ndash; [[Battle of Antioch on the Meander]]: Seljuk forces led by Sultan [[Kaykhusraw I]] are initially victorious with the Latin mercenary cavalry (some 800 men) bearing the brunt of the casualties due to their flanking charge; exhausted by the effort in their attack, the Latin army under Emperor [[Theodore I Laskaris]] is struck in the flank and rear by the Seljuk forces. However, the Seljuks stop the fight in order to plunder the Latin camp – which allows Theodore's forces to rally and counter-attack the now disorganized Turks. Meanwhile, Kaykhusraw seeks out Theodore and engages him in single combat, but he is unhorsed and beheaded. The Seljuks are routed and the former Byzantine emperor [[Alexios III Angelos]], Theodore's father-in-law, is captured and imprisoned, ending his days in enforced monastic seclusion.<ref>Macrides, Ruth (2007). ''George Akropolites: The History – Introduction, Translation and Commentary'', pp. 131–132. Oxford: Oxford University Press. {{ISBN|978-0-19-921067-1}}.</ref>
* [[October 15]] &ndash; [[Battle of the Rhyndacus (1211)|Battle of the Rhyndacus]]: Latin emperor [[Henry of Flanders]] lands with an expeditionary force (some 3,000 men) at [[Biga, Çanakkale|Pegai]], and marches eastwards to the [[Mustafakemalpaşa River|Rhyndacus River]]. The Byzantine army (much larger in force overall) under Theodore I prepare an ambush, but Henry assaults his positions along the river and defeats the Byzantine army in a day-long battle. Henry marches unopposed through the remaining Byzantine lands, reaching south as far as [[Kemalpaşa#Nymphaion – Nif – Kemalpaşa|Nymphaion]].<ref>Macrides, Ruth (2007). ''George Akropolites: The History – Introduction, Translation and Commentary'', pp. 148–153. Oxford: Oxford University Press. {{ISBN|978-0-19-921067-1}}.</ref>