5 links
BBC: Mary I (1516 - 1558)
bbc.co.uk
The first queen to rule England in her own right, she was known as 'Bloody Mary' for her persecution of Protestants.
History of the Monarchy: Mary I
royal.gov.uk
Concise profile from the official site of the Royal Family.
Queen "Bloody" Mary I Tudor of England
departments.kings.edu
Short biography and list of resources related to the life of Mary Tudor.
Tudor Monarchs - Queen Mary I
englishhistory.net
Detailed biography examines Mary's childhood, her reign, her marriage, and her bitter rivalry with Elizabeth I. Includes portraits.