Queen Mary I, also known as Mary Tudor, was the daughter of King Henry VIII and Catherine of Aragon. She ruled England from 1553 to 1558 and was the first woman to hold the title of queen regnant. Mary is often remembered for her efforts to restore Roman Catholicism in England after the Protestant Reformation initiated by her father. During her reign, Mary earned the nickname "Bloody Mary" due to her persecution of Protestant reformers. Her marriage to Philip II of Spain was controversial and aimed at strengthening Catholic ties. After her death, her half-sister, Elizabeth I, succeeded her and established Protestantism firmly in England.