Maria Laskarina

Maria Laskarina (c. 1206–1270) was queen consort of Hungary as the wife of Béla IV, and a daughter of Theodore I Laskaris, founder of the Nicaean Empire. In 1218 she married Prince Béla, son of Andrew II, converting from Orthodoxy to Catholicism to seal the Nicaean-Hungarian alliance. She became queen on Béla's accession in 1235.

During the Mongol invasion she fled with her children, and in the 1260s she supported Béla against their son Stephen. She died on 24 June 1270, weeks after her husband.