No, Rapunzel is not Cinderella’s stepmom. Rapunzel and Cinderella are two different characters from separate fairy tales.
Rapunzel is the main character in the fairy tale “Rapunzel,” which was collected by the Brothers Grimm. She is a young woman who is locked in a tower by a wicked enchantress and grows her long hair to use as a ladder to escape.
Cinderella, on the other hand, is the main character in the fairy tale “Cinderella,” also collected by the Brothers Grimm. She is a kind-hearted young woman who is mistreated by her stepmother and stepsisters but ultimately finds happiness with the help of a fairy godmother.
So, while both fairy tales feature a young woman as the main character, Rapunzel and Cinderella are not related, and Rapunzel is not Cinderella’s stepmom.