"Bloody Mary" - Queen Mary I
- Overview of the major events in the English Queen's life, with links to recommended reading on this and related topics.
- http://www.royalty.nu/Europe/England/Tudor/MaryI.html

Mary Tudor
- Complete biographical information on Mary from birth to death. Includes pictures and links to information about related books and movies.
- http://home.earthlink.net/~elisale/

Mary Tudor and the Return to Rome
- Article about Mary's efforts to bring England back into the Roman Catholic Church.
- http://www.scionofzion.com/marytudor.htm

Bloody Mary: Further Intrigue in the Tudor Court
- A free family historical boardgame about Tudor England after Henry VIII.
- http://www.archsoc.com/games/Mary.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://englishhistory.net/tudor/monarchs/mary1.html

Mary I
- Biography, online will, and portrait gallery.
- http://www.tudorhistory.org/mary/

Catholic Encyclopaedia: Mary Tudor
- Detailed biographical article first published in 1910.
- http://www.newadvent.org/cathen/09766a.htm