Name: Maria Laskarina
Change Date: 27 FEB 2007
Béla was married to Maria Laskarina, a daughter of Emperor Theodore I Lascaris of Nicaea and Anna Angelina. They had two sons and seven daughters, of whom the most notable were:
1. Kinga, married to King Boleslaus V of Poland; she was canonized by the Roman Catholic Church in 1999
2. Stephen, future King István V
3. Erzsébet, married to Duke Henry XIII of Lower Bavaria
4. Constance, married to Knyaz Leo I of Halych in 1247.
5. Margit, canonized by the Roman Catholic Church in 1943 as St. Margaret. She lent her name to Margaret Island.
Father: Theodore I Lascaris
Mother: Anna Angelina
Bela IV of Hungary
- Stephen V of Hungary
- Anna of Hungary
- Iolanda or Helena of Hungary
- Constantia of Hungary