Queen Mary I (reigned 1553 – 1558)
The daughter of Henry VIII and his first wife, Catherine of Aragon, Queen Mary I succeeded her brother, Edward VI, who died at age 15. She was a staunch Catholic ruler, who believed she was the champion of her subjects’ souls. She believed heresy, such as Protestantism, was a religious and civil offense, on par with treason. Those found guilty were punished brutally, in three years of her reign, 300 ‘heretics’ were burned. This extreme punishment made Mary an unpopular ruler. Despite her deep desire to have children and secure the Catholic faith through succession, Mary had no heirs at her death, and the crown passed to her Protestant half-sister Elizabeth.