John III Doukas Vatatzes
Also known as John III Vatatzes, Emperor of Constantinople
Emperor of Nicaea
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HouseVatatzes FatherBasil Vatatzes (?) Mother... Angelina (?) ReligionEastern Orthodox
John III Doukas Vatatzes, Latinized as Ducas Vatatzes (Greek: Ἰωάννης Γ´ Δούκας Βατάτζης, romanized: Iōánnēs Doúkās Vatatzēs; c. 1192 – 3 November 1254), was Emperor of Nicaea from 1221 to 1254. He was succeeded by his son, known as Theodore II Doukas Laskaris.