Beloslava

Beloslava Белослава
Queen of Serbia
Tenure	1234–1243
Spouse	Stefan Vladislav I
House	Asen→Nemanjić
Father	Ivan Asen II of Bulgaria
Mother	Anna

Beloslava (Bulgarian: Белослава) was a Bulgarian princess and Queen consort of Serbia between 1234 and 1243), wife of king Stefan Vladislav I.

Beloslava was the daughter of tsar Ivan Asen II of Bulgaria and his first wife Anna (religious name Anisia), mentioned in the Synodik of the Bulgarian Church. The couple had another daughter - Maria, who married Manuel of Epirus. It is possible that Beloslava and her sister Maria were illegitimate children of Ivan Asen because his first marriage with Anna was not recognized by the Bulgarian Orthodox Church. But there was no dоubt about the noble birth his daughters so both were married with people of high aristocratic status.

After the battle of Klokotnitsa, Bulgaria become first politic power on the Balkans and Beloslava was married to Serbian prince Stefan Vladislav. The marriage was arranged by his uncle Rastko Nemanjić in order to secure good relations between the Kingdom of Serbia and the Bulgarian Empire.

In 1234 a Bulgarian-aided coup d'état in Serbia toppled king Stefan Radoslav, a son-in-law and protégé of the despotes Theodore of Epirus, and replaced him with Stefan Vladislav, who was his half-brother. So Beloslava become the new queen consort of Serbia.

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Wikipedia