Andronikos III of Trebizond (1310–1332), Emperor of Trebizond from 1330 to 1332
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To overcome his failure to secure gains against the Serbians, Andronikos III attempted to annex Bulgarian Thrace, but the new tsar Ivan Alexander of Bulgaria defeated Byzantine forces at Battle of Rusokastro on 18 July 1332.
Irene Palaiologina of Trebizond, illegitimate daughter of Andronikos III Palaiologos, reigning Empress of Trebizond in 1340–41