Flame Princess

Flame Princess is the Princess of the Fire Kingdom and the Girlfriend of Finn the Human. she was trapped in a Lantern by her evil Dad until Jake and Finn freed her.

History
She was born from Flame King and Flame Queen with her brothers. when she was 1 her father ordered a citizin to throw her out of the Fire Kingdom because she was too powerful until Princess Bubblegum found her and returned her to the King of Flames and she was imprisoned in the tank

Fourteen years later Jake and Flambo freed her.