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.

Q: Category: DESIGN 
Clue: Derived from scutum, the Latin for "shield", it's a shield bearing a coat of arms, or a metal plate around a keyhole

A: escutcheon
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Q: Category: EPITAPHS 
Clue: "Subject of the decision of the Supreme Court of the United States in 1857 which denied citizenship to the Negro"

A: dred scott
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Q: Category: ROYAL WOMEN 
Clue: Nori, his daughter, only fit the category until Nov. 15, 2005, when she married a commoner

A:
akihito
****