Mary Tudor has gone down in history as the Catholic tyrant "Bloody Mary." There’s certainly cause for such a brutal nickname: she executed hundreds of Protestants during her short reign.

But there were only two executions for heresy in this reign. The Catholic Mary Tudor came to the throne in 1553 after a brief attempt by the Protestants to have Lady Jane Grey crowned Queen.

However, Mary became queen and Jane was executed. Not everyone considers Lady Jane Gray to be one of the Tudors. Before Henry Tudor became king he had to win the crown from King Richard III.