Mary I, also known as Bloody Mary, was queen of England from 1553 to 1558. She was the daughter of King Henry VIII and Catherine of Aragon. When she took the throne, Mary tried to return England to Roman Catholicism after her Protestant brother Edward's reign, executing over 280 Protestants who refused to convert. Her five-year reign ended with her death in 1558, during which time she married King Phillip II of Spain and faced challenges to her rule from Lady Jane Grey.