Lady Elizabeth Cavendish was born on 22 February 1654. She was the daughter of Henry Cavendish, 2nd Duke of Newcastle-upon-Tyne and FrancesPierrepont. She married, firstly, Christopher Monck, 2nd Duke of Albemarle, son of George Monck, 1st Duke of Albemarle and Anne Clarges, on 30 December 1669 at The Cockpit, Whitehall, London, England. She married, secondly, Ralph Montagu, 1st Duke of Montagu, son of Edward Montagu, 2nd Baron Montagu of Boughton and Anne Winwood, on 8 September 1692. She died on 28 August 1734 at age 80 at House, Clerkenwell, London, ENewcastle ngland, without surviving issue. She was buried on 11 September 1734 at Westminster Abbey, Westminster, London, England. She died intestate and her estate was administered on 4 November 1734.
From 30 December 1669, her married name became Monck. As a result of her marriage, Lady Elizabeth Cavendish was styled as Duchess of Albemarle on 3 January 1669/70. Lady Elizabeth Cavendish also went by the nick-name of ‘the Mad Duchess’. From 8 September 1692, her married name became Montagu. As a result of her marriage, Lady Elizabeth Cavendish was styled as Countess Montagu on 8 September 1692. As a result of her marriage, Lady Elizabeth Cavendish was styled as Duchess of Montagu on 14 April 1705.
Reference:
- [S6] 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 I, page 90.
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Relationship to Sloane: Virtual International Authority File: