Cedric the Bull

The main antagonist of Knights' Kingdom who fights against King Leo to try and claim his kingdom for himself. Cedrics' actually the youngest son of 13 to a deceased King that was left with no territory of his own and not wanting to fight his twelve brothers decided to just go conquer another kingdom for himself. He found a young Weezil in the forests and took him in as his own son, and plans on just exiling King Leo and his family once he takes over the Lion Castle.

Example of:
Noble Demon