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.
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Question: Category: HISTORIC NAMES
Clue: 2 of the people who witnessed his execution were John Wilkes Booth & Stonewall Jackson

Answer: john brown

Question: Category: WORLD LEADERS
Clue: At his 1994 inaugural, he called for "a rainbow nation at peace with itself and the world"

Answer: nelson mandela

Question: Category: HISTORICAL SHAKESPEARE
Clue: In "Henry VI, Part I" this woman is described as "a holy prophetess new risen up"

Answer:
joan of arc