Noun
daughter of Henry VIII and Catherine of Aragon who was Queen of England from 1553 to 1558; she was the wife of Philip II of Spain and when she restored Roman Catholicism to England many Protestants were burned at the stake as heretics (1516-1558)
Source: WordNetB.W. Beckingsale: Burghley Tudor Statesman (New York: Macmillan 1967) pp.45-46 He signed not only the devise, but also the bond among the conspirators and the letters from the council to Mary Tudor of 9 June 1553. Source: Internet
Loades 1996 pp. 256–257, 238–239 Robert Dudley led a force of 300 into Norfolk where Mary Tudor was assembling her followers. Source: Internet
Jane would form a very close relationship with Mary Tudor. Source: Internet
Mary Tudor: The Spanish Tudor. Source: Internet
On 20 July 1554, he published a pamphlet attacking Mary Tudor and the bishops who had brought her to the throne. Source: Internet
Presumably conforming in public under Mary Tudor, he was counted among the "heretics" by Philip II's agent before Elizabeth's accession. Source: Internet