Mary I (February 18, 1516 - 18 October, 1564) became Queen of England and Ireland on July 19, 1553 and was formally crowned on October 1, 1553 at the age of 37. Mary I was half Spanish through her mother, Catherine of Aragon, and half English through her father, King Henry VIII of England. She was the fourth Tudor Monarch to be crowned Queen of England and Ireland.