She was daughter of King Casimir III of Poland (1309–1370), who was succeeded, not by Anna nor any of Casimir's own descendants, but by Casimir's nephew, King Louis I of Hungary.
The young woman's parentage was that of King Casimir III of Poland (1309–1370), whose reign came to an end through a process that bypassed his daughter Anna and his direct heirs, instead being taken over by his cousin, King Louis I of Hungary.