Prince Alexander is a Prince of Daventry
and King of the Land of the Green Isles
. He is first introduced in the game King's Quest III: To Heir is Human
as Gwydion, a slave to the evil wizard Manannan. Kidnapped as a baby, Gwydion has no idea that he is really Prince Alexander, long lost son of King Graham
and Queen Valanice
, King and Queen of Daventry
By mastering the spells of Manannan's spell book, Gwydion is able to turn his former captor into a cat and escape back to the land of Daventry.