Today, 483 years ago, on December 14, 1542 (November 8, 1542), Mary I became Queen of Scotland. Mary I became Queen of Scotland. Mary I (Mary I of Scotland, Mary Stuart or Stewart, Mary, Queen of Scots, December 8, 1542 ¨C February 8, 1587), Queen of Scotland (December 14, 1542 ¨C July 14, 1567), and Queen of France (July 10, 1559 ¨C December 5, 1560). Her life was full of tragedy, and I am afraid that she also became one of the most famous of Scottish monarchs. Queen Mary of Scotland and her cousin ¡ª Queen Mary I of England, the period of the "bloody life of Mary" and the period of the reign, are often confused.