Based on the clue 'a castle in this world capital was once the home o...', what is the answer?

Based on the clue 'a casket is a coffin a strongbox is this similar w...', what is the answer? Based on the clue 'a casper wyoming game fish display to stop this c...', what is the answer? Based on the clue 'a castle built by crusaders dominates the port of ...', what is the answer? Based on the clue 'a castle fear not till birnam wood do come to it', what is the answer? Based on the clue 'a castle keep in this french city is known as the ...', what is the answer? Based on the clue 'a castle on the vltava river in this capital was o...', what is the answer? What is associated with: a castle was built at vallandraut france for the man who in 1309 moved this office to france f… Based on the clue 'a cat killed the rat that ate the malt in his hous...', what is the answer?