Editing 1137 (section)

==== Byzantine Empire ====
* Spring &ndash; Emperor [[John II Komnenos|John II]] ('''Komnenos''') leads a Byzantine expeditionary force into [[Cilicia]] (the Byzantine fleet guards his flank). He defeats the Armenians under Prince [[Leo I, Prince of Armenia|Leo I]] ("Lord of the Mountains"), and captures the cities of [[Mersin]], [[Tarsus, Mersin|Tarsus]], [[Adana]] and [[Mopsuestia|Mamistra]]. Leo retreats to the great fortifications of [[Anazarbus]] – where its garrison resists for 37 days. The Byzantine [[siege engine]]s batter down its walls, and the city is forced to surrender. Leo escapes into the [[Taurus Mountains]], while the Byzantine forces march southward into the plain of [[Principality of Antioch|Antioch]].<ref>[[Steven Runciman]] (1952). ''A History of The Crusades. Vol II: The Kingdom of Jerusalem'', pp. 170–171. {{ISBN|978-0-241-29876-3}}.</ref>
* [[August 29]] &ndash; John II appears before the walls of Antioch, and encamps with the Byzantine army on the north bank of the [[Orontes River]]. For several days he besieges the city, [[Raymond of Poitiers]] (prince of Antioch) is forced to surrender. He recognizes John as his suzerain and becomes with [[Joscelin II, Count of Edessa|Joscelin II]] (count of [[County of Edessa|Edessa]]) a vassal of the [[Byzantine Empire]].<ref>Steven Runciman (1952). ''A History of The Crusades. Vol II: The Kingdom of Jerusalem'', pp. 171–172. {{ISBN|978-0-241-29876-3}}.</ref>