The Swan Princess

King William and his friend Queen Uberta both have a child; Uberta has a son named Derek and William has a daughter named Odette. At the celebration of Odette's birth, the two make a plan to have them meet and spend every summer together in hopes that they fall in love and marry so that they can unite their two kingdoms forever. Meanwhile, King William's chancellor, Sir Rothbart, plans to take King William's kingdom for himself by mastering a type of dark magic known as The Forbidden Arts. However, William discoveries his plans and Rothbart is arrested. Despite calls for his death, King William spares Rothbart's life and banishes him forever. Before leaving, Rothbart swears revenge on King William, that he'll get his powers back and claim everything William has as his own.