Ivan Asen II of Bulgaria
(重定向自Ivan Asen II)

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Ivan Asen II (Bulgarian:Иван Асен II, pronounced [iˈvan ɐˈsɛn ˈftɔri]; also Йоан Асен II, Yoan Asen II;) in English sometimes known as John Asen II, ruled as Emperor (Tsar) of Bulgaria from 1218 to 1241, during the Second Bulgarian Empire.