Rapunzel
From Tardis Wiki, the free Doctor Who reference
Rapunzel was a fictional princess who was the protagonist of a fairy tale, noted for having extremely long hair.
Jamie encountered Rapunzel in the Land of Fiction, where he climbed her hair to escape a Clockwork Soldier. Rapunzel later assisted the Doctor in his battle against the Master of the Land of Fiction. (DW: The Mind Robber)