Based on the clue 'at his national historic site in west branch iowa', what is the answer?

Based on the clue 'at his home in giverny this artist created the wat...', what is the answer? Based on the clue 'at his job smith uses this official language to si...', what is the answer? What is associated with: at his july 6 1535 beheading at the tower he said the kings good servant but gods first? What is associated with: at his last paris concert feb 16 1848 he bravely tinkled out his opus 65? Based on the clue 'at his peak he composed 2 or 3 operas a year like ...', what is the answer? Based on the clue 'at his pittsburgh museum you can buy reproductions...', what is the answer? Based on the clue 'at his presidential library in simi valley califor...', what is the answer? Based on the clue 'at his royal wedding his bride mixed up his 1st m...', what is the answer?