Anna of Wallachia
Anna of Wallachia or Anna Basarab () was a Wallachian princess and Empress consort of Bulgaria in Vidin, second wife of Emperor Ivan Sratsimir. She was the daughter of Nicholas Alexander of Wallachia and his Catholic second wife, the Hungarian 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. She married Ivan Sratsimir in 1356–1357. 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. It is not known whether Theodora had any role in the arrangement of the wedding between her son and her niece or whether it was done on her initiative. Between 1365 and 1369, Vidin was occupied by the Kingdom of Hungary. The ruling family was held captive in the castle of Humnik (in Bosiljevo, Croatia), where they were forced to convert to Catholicism. 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 raised a Catholic. It is unknown whether she became Eastern Orthodox in Bulgaria but the book she ordered contains only hagiographies of Orthodox saints, which is a hint that she most likely converted to Orthodoxy. Family 
The marriage produced three children – a son and two daughters:
 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

Sources
 Божилов, Иван. Фамилията на Асеневџи (1186–1460), София, 1985

Bulgarian consorts
Women of medieval Wallachia
14th-century births
14th-century deaths
House of Basarab
Sratsimir dynasty
14th-century Roman Catholics
Bulgarian Roman Catholics
People from Vidin
Tsardom of Vidin
People of medieval Wallachia
14th-century Bulgarian women
14th-century Bulgarian people
14th-century Hungarian women