BBC Online: Bloody Mary and the Burning of Cranmer - Fact sheet illustrates how Mary Tudor earned the nickname "Bloody Mary." - http://www.bbc.co.uk/radio4/history/sceptred_isle/page/51.shtml?question=51
Queen "Bloody" Mary I Tudor of England - Short biography and list of resources related to the life of Mary Tudor. - http://departments.kings.edu/womens_history/marytudor.html
Kids' Zone: Queen Mary I - Profile of Queen Mary I for children. - http://www.royal.gov.uk/output/Page2074.asp
BBC: Mary I (1516 - 1558) - The first queen to rule England in her own right, she was known as 'Bloody Mary' for her persecution of Protestants. - http://www.bbc.co.uk/history/historic_figures/mary_i_queen.shtml
Mary I - Biography of Mary Tudor, queen of England (1553–58). - http://www.factmonster.com/ce6/people/A0832047.html
History of the Monarchy: Mary I - Concise profile from the official site of the Royal Family. - http://www.royal.gov.uk/output/Page45.asp
Mary I: British Monarchs - Biography and portrait. From Britannia.com. - http://www.britannia.com/history/monarchs/mon44.html
Tudor Monarchs - Queen Mary I - Detailed biography examines Mary's childhood, her reign, her marriage, and her bitter rivalry with Elizabeth I. Includes portraits. - http://www.englishhistory.net/tudor/monarchs/mary1.html