She was the daughter of Nicholas Alexander of Wallachia and his Catholic second wife, Clara Dobokai. Her younger sister, Anka, married the Serbian king Stephen Uroš V. Her father"s sister was Theodora, the first wife of Emperor Ivan Alexander (r 1331–1371) and mother of Ivan Sratsimir.
The marriage was a reaction to Ivan Alexander"s divorce from Theodora and was aimed at weakening the position of the new empress, Sarah-Theodora. Between 1365 and 1369, Vidin was occupied by the Kingdom of Hungary. They were later released but Anna"s daughters remained in Hungary.
One of them died at a young age but Dorothea married the Ban (and later King) of Bosnia Tvrtko I.
Anna is also known to have ordered the Vidin Psalter of 1359–1360.
The empress was born a Catholic. Constantine II, who claimed his father"s title Emperor of Bulgaria after the fall of Vidin
Dorothea of Bulgaria, who became Queen consort of Bosnia
An unknown daughter.
