What was the prince's nickname in the whipping boy?

In "The Whipping Boy" by Sid Fleischman, the prince's nickname is "Prince Brat." This nickname reflects his spoiled and mischievous nature, as he often behaves like a typical spoiled royal. The story revolves around his relationship with Jemmy, the whipping boy, who is punished for the prince's misdeeds. Together, they embark on an adventure that challenges their initial perceptions of each other.