Her first marriage, in 1662, was to Charles, Lord Rich, son of the 4th Earl of Warwick. The couple had no children, and Lord Rich died in 1664.[2]
She married the earl, then known as Lord Burghley, on 2 May 1670. Their son John, became the 6th Earl. Other children included Elizabeth (1687-1708), later Countess of Orrery.[3]
The earl and countess lived at Burghley House, where the earl accumulated a large art collection as a result of his European travels. The countess joined her husband on two European tours in 1679-81 and 1699-1700. A portrait of her, by Godfrey Kneller, hung in the "brown dining room" at Burghley.[1]
^G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume X, page 180.