The exact meaning of Rapunzel is unclear, but it's most likely related to the Germanic word for a light purple flower. This is the name of the heroine in the Brothers Grimm fairy tale 'Rapunzel'. She was locked up in a tower and eventually freed by a prince who climbed up the tower by holding onto Rapunzel's long hair. Rapunzel is one Disney's official princesses and the main female protagonist in the film Tangled.