She is initially determined to break the enchantment by kissing a prince, only to meet and fall in love with Shrek, an ogre, instead. One of the film series' main characters, Fiona is introduced as a beautiful princess placed under a curse that transforms her into an ogre at night. Princess Fiona is a fictional character in DreamWorks' Shrek franchise, first appearing in the 1990 book Shrek! as the magnificent princess and subsequently in the animated film adaption of the same name as Princess Fiona.