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.

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

Category: THE CHIEFS 
Clue: This Chief Justice in the Dred Scott decision earlier served as Attorney General under Andrew Jackson
taney

Category: RIVER DEEP, MOUNTAIN HIGH 
Clue: The names of this highest mountain in Western Europe & this highest mountain in the Pacific both mean "White Mountain"

mont blanc and mauna kea