Complex sentence: Kunigunde acted as a big influence in Elisabeth's life, though the princess moved out of the Monastery to live with her elder sister, Anna, Elisabeth Richeza and Wenceslaus III's widow Viola Elisabeth of Cieszyn.
Split into simpler sentences: Kunigunde acted as a big influence in Elisabeth's life. Elisabeth then went to live with her elder sister, Anna, Elisabeth Richeza and Wenceslaus III's widow Viola Elisabeth of Cieszyn.