Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

henry's marriage to catherine of aragon was finally annulled in the following may by archbishop cranmer, thus ending the first of henry's 6 marriages.
catherine of aragon

parnassiinae is a subfamily of butterflies.
parnassiinae

charles cyphers (born july 28, 1939) is an american movie, television, and stage actor who is known for his role as sheriff leigh brackett in "halloween".
charles cyphers