Prudence

Prudence is a minor character from the two sequels of the original Cinderella film. Some at first consider her to be a Disney Villain because of her apparent dislike of Cinderella, but later they become great friends. It was from the new princess that changes could be allowed.

Background
She was tasked by the King to teach Cinderella how to be a princess, Prudence was shocked to find Cinderella making her own breakfast in a servant's outfit (the same outfit she wore as a servant in the previous film). She then spent the entire day trying to get Cinderella to learn how to act like a princess while planning the royal ball. However, Cinderella decided to do things her own way, leaving Prudence constantly saying "It simply isn't done!"; Jaq made fun of her, singing it as he danced with Gus.

Come the day of the royal bal, Prudence was shocked to find the King liked the changes Cinderella made. When she received the thanks, Prudence corrected the King, telling him Cinderella was the one to thank. She then had no further problems with Cinderella, deciding to trust her judgement over tiresome traditions.

When the wicked stepmother reversed time in A Twist in Time, it was back to square one with Prudence and Cinderella; they met for the first time in this timeline when Cinderella claimed to be a royal mouse-catcher to sneak into the palace.

Trivia

 * Her name is a pun based on her behavior.
 * She is shown to be fond of prunes.