Mary Tudor (1516-1558), known by Protestants of her time as Bloody Mary, ruled England and Ireland for five years, beginning in 1553. She was the only surviving child of of King Henry VIII and his first wife, Catherine of Aragon.
As part of her campaign to forcibly restore England's connection to the Roman Catholic Church, Mary had hundreds of protestants burned at the stake while many others fled their country to escape her brutality.
To the dismay of the English people, Mary married prince Philip of Spain, son of Holy Roman Emperor Charles V. During their brief time together Philip persuaded Mary to end her half sister Elizabeth's imprisonment in the Tower of London. At Mary's death Queen Elizabeth I went on to become one of England's most important monarchs.