Decline of the Byzantine Empire. After the Battle of Manzikert (1071) it lost control of Anatolia, and while the Komnenos dynasty restored a degree of stability in the 12th century with help from the First Crusade, the empire was captured and partitioned by the Crusaders themselves in the Fourth Crusade in 1204.
Explanation: i dont know if this might have helped. hopefully it did i just googled it.....good luck ;]
