Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
When Bořivoj fled to Hungary in 1120, she moved back to Austria where her brother Leopold III, Margrave of Austria, granted her sanctuary. She entered Göttweig Abbey where she eventually died in 1142.
References
BLÁHOVÁ, Marie; FROLÍK, Jan; PROFANTOVÁ, Naďa. Velké dějiny zemí Koruny české I. Do roku 1197. Praha ; Litomyšl : Paseka, 1999. Page 506. ISBN80-7185-265-1.