Lady Mary Tudor
- James Radclyffe, 3rd Earl of Derwentwater (1689–1716)
- Lady Mary Tudor Radclyffe
- Charles Radclyffe (3 September 1693 – 8 December 1746)
- Hon. Francis Radclyffe
Mary separated from Lord Derwentwater in 1700, reportedly due to her unwillingness to convert to Roman Catholicism.
On 23 May 1705, shortly after Lord Derwentwater's death, she married secondly, to Henry Graham. On 26 August 1707, after Graham's death, on 7 January 1707, she married thirdly, to Major James Rooke.
Lady Mary died in Paris on 5 November 1726, aged 53.