She was an illegitimate daughter of Emanuel Scrope, 1st Earl of Sunderland, by his mistress Martha Jeanes, or Janes, or Jones, alias San(d)ford.
[1] Mary's first husband was Henry Carey, Lord Leppington, whom she married in about 1646.
[2] A Royalist and the son of Henry Carey, 2nd Earl of Monmouth, he died in 1649, and they had no children.
It was through his marriage to Mary that Paulet came into possession of the Bolton estates in North Yorkshire.
They had four children in all: Mary died at Moulins, Allier, France, and was buried at Wensley, Yorkshire.