"Catherine Parr" is a proper noun, which means it refers to a specific person rather than a general concept. In this case, Catherine Parr was the sixth and final wife of King Henry VIII of England. She lived from 1512 to 1548.
In historical discussions or writings, you might say: - "Catherine Parr played a significant role in the Protestant Reformation in England."
Catherine Parr is an important historical figure in English history, recognized for her role as the last wife of Henry VIII and her influence during a time of religious change in England.