She was the daughter and only child of Konrad II of Masovia and Hedwig, daughter of Bolesław II the Bald.
Between 1289 and 1290 Anna married Przemysław of Racibórz.
Anna was Duchess of Racibórz along with her unnamed sister-in-law.
With her husband, Anna had the following children: Is also believed that Constance, who ruled in Wodzisław Śląski until her death in 1351 was also her daughter.
When her son Leszek was old enough to exercise power over the principality, Anna probably moved to Wodzislaw where she lived with the consent of her son.