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: THE WINTER PALACE 
Clue: In 1881 the "Czar Liberator", the II czar of this name, asked to be taken to the palace to die after being fatally wounded

Answer: alexander ii


Question: Category: LITERATURE 
Clue: In "The Call of the Wild", Judge Miller's gardener kidnaps this dog & sells him for $50

Answer: buck


Question: Category: NEFERTITI TIME 
Clue: Some historians speculated that a mummy found at Location KV35 in this valley may prove to be Nefertiti

Answer:
the valley of the kings