1. | Maria of Hungary died in 1237. Maria married Iwan Asen II Tsar of The Bulgarians in 1221. Iwan (son of Kalojan "The Romankiller" Tsar of Bulgaria) was born about 1190; died in 1241. [Group Sheet] [Family Chart]
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2. | Elena of Bulgaria (1.Maria1) was born about 1224; died about 1254. Elena married Thedoros II Dukas Batatzes Emperor of Byzantium in 1235. Thedoros (son of I?ann?s III Dukas Batatzes Emperor of Byzantium) was born in 1222; died in 1258. [Group Sheet] [Family Chart]
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3. | Koloman I Tsar of The Bulgarians (1.Maria1) was born about 1232; died in 1246. |
4. | I?ann?s IV Dukas Batatzes Emperor of Byzantium (2.Elena2, 1.Maria1) was born in 1250; died in 1305. |