Princess Brietta is the deuteragonist in the 2005 animated film, Barbie and the Magic of Pegasus. She is the older sister of Princess Annika.A few years before Annika was born, Wenlock came to the castle on Brietta's birthday and asked Brietta to be his famous bride. The King was refused to let him marry her. In order to revenge, Wenlock turned Brietta into Pegasus. Brietta's parents did everything to make her human again, but it didn't work. Brietta couldn't bear to see her parents so sad, but she leave and flew to the Cloud Kingdom, where she lived for many years.
When Annika was born, the King and his wife, Queen were moved to a castle in the distance to protect her from Wenlock. Watching her secretly through Brietta. Despite this, Wenlock would find Annika and asks her to marry him. When she can refuse, he will turning everyone in the kingdom into stone statues, including Annika and Brietta's parents and also Eric.
Fortunately, Brietta was able to save Annika and her polar bear pet, Shiver and bring them to the Cloud Kingdom. Annika finally got to know the truth about Brietta. While Brietta tried to find the magic Wand of Light to break the evil spell of Wenlock, but failed. As a result, she gave up her hope of stopping him, but Annika encouraged with her sister to continue her efforts. Brietta, who are could pored with that Annika is very nice, helped her to rebuild the Wand of Light, and Annika used it to return Brietta back to human.
But later on, they are returned to their kingdom, however, Wenlock attacked them, causing Brietta to be stunned. She arrived, Brietta finds Wenlock that he eventually stole the Wand of Light and buried her sister under the snow. Aidan, the blacksmith they met on the road, came back and helped Brietta save Annika. After defeating Wenlock, Annika brought Brietta back to their kingdom, where they would definitely reunited with their parents.
