Instructions: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
Input: Category: RANKS & TITLES 
Clue: Owain Glyndwr, who died circa 1416, was the last native of his country to claim this title
Output:
prince of wales