The daughter of Kazimierz I and Eufemia, the daughter of Trojden, the Prince of Mazovia. She married the Prince of Legnica, Wacław, in 1340. They had four sons; Wacław, the Bishop of Wrocław; Ruprecht, the Prince of Legnica; Bolesław and Henryk, the Bishop of Wrocław, and a daughter, Jadwiga, the wife of Henryk VI, the Prince of Żagań. She and her husband engaged in charitable works and endowments for the Church, e.g. the foundation of the collegiate church in Legnica.

(K. Jasiński, Rodowód, vol. 3, pp.120-122, W. Dworzaczek, Genealogia, table 82, O. Balzer, Genealogia, p. 452, B. Smoch: Anna in Książęta i Księżne Górnego Śląska, p.14, I. Panic, Księstwo cieszyńskie, s. passim)