Maria of Bulgaria, Latin Empress

Maria of Bulgaria was the second Empress consort of Henry of Flanders, Latin Emperor of Constantinople.


She was a daughter of Kaloyan of Bulgaria. Her mother may have been his wife Anna of Cumania, who went on to marry Boril of Bulgaria, a nephew of her first husband. Her paternal uncles included Peter IV of Bulgaria and Ivan Asen I of Bulgaria. The further ancestry of the Asen dynasty is uncertain.

Empress consort

In 1213, Maria married Henry of Flanders of the Latin Empire. According to The Late Medieval Balkans (1987) by John V. A. Fine, the marriage was part of an alliance between her stepfather Boril and Henry. The alliance would benefit the Latin Empire by securing Thrace and Kingdom of Thessalonica from the threat of invasion from the Second Bulgarian Empire. Allowing Henry to turn his attention to facing the Empire of Nicaea instead. On the other hand, Boril had suffered losses in both men and territory while the war continued. Unable at the moment to expand his borders, he might have seen the alliance as a way to secure his own borders from Latin invasion. In any case the marriage concluded the first phase of the Bulgarian-Latin Wars.[1]

On 11 June, Henry died in Thessaloniki. Maria was reportedly suspected of having poisoned him. Her further fate is unknown. Their marriage was childless and Henry was succeeded by his brother-in-law Peter II of Courtenay.


  1. Fine 1994, pp. 100–101.


Maria of Bulgaria, Latin Empress
Born: ? Died: ?
Royal titles
Preceded by
Agnes of Montferrat
Latin Empress consort of Constantinople
c. 1213–1216
Succeeded by
Yolanda of Flanders
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