Prince of Persia 3D

Prince of Persia 3D begins with the Prince and Sultan of Persia visiting the Sultan's brother, Assan. Soon enough, the Prince's personal bodyguards are killed, himself locked in the dungeon, and the Sultan taken by Assan. The Prince escapes the dungeon, and it is revealed that the Sultan of Persia promised Assan many years ago that his daughter would marry Assan's son, Rugnor, not the Prince. (wiki)