John II, Byzantine emperor

John II (John Comnenus) kŏmnēˈnəs [key], 1088–1143, Byzantine emperor (1118–43), son and successor of Alexius I. He was crowned despite the intrigues of his sister, Anna Comnena, and of his mother, Irene. His attempts to cancel the commercial privileges granted the Venetians by Alexius were unsuccessful, but his campaigns against the Magyars, Serbs, and Pechenegs were victorious. He successfully defied Roger II of Sicily, made an alliance with Emperor Conrad III to check growing Norman power, and conquered Cilicia from the Armenians. He died while preparing to fight the Latin prince of Antioch. John II was respected for his lofty character and for leniency toward his adversaries. He was succeeded by his son Manuel I.

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