Sarah (Cadogan) Lennox
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Sarah (Cadogan) Lennox (1706 - 1751)

Lady Sarah Lennox formerly Cadogan aka Duchess of Richmond
Born in 's-Gravenhage, Zuid-Holland, Nederlandmap
Ancestors ancestors
Wife of — married 4 Dec 1719 in Den Haag, Holland, Nederlandmap
Descendants descendants
Died at age 44 in Irelandmap
Problems/Questions Profile managers: John Atkinson private message [send private message] and Barry Meadows private message [send private message]
Profile last modified | Created 27 Nov 2008 | Last significant change: 6 May 2023
11:13: Aaron Gullison edited the Biography and Status Indicators for Sarah (Cadogan) Lennox (1706-1751). (Adding sources. ) [Thank Aaron for this]
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Sarah Cadogan was born on 18 September 1706,[1] at S'Gravenhage (The Hague), the eldest daughter and co-heir of William Cadogan, Earl Cadogan, and his wife Margaretta Cecilia Munter.

At the age of 13 she was married on 4 December 1719 to the 18 year old, Charles Lennox, 2nd Duke of Richmond, then known by the courtesy title of Earl of March, apparently to cancel out a gambling debt between their fathers.[2] Sarah then returned to her parents, and the Earl of March continued on with his 'grand tour'.

The story goes that when he finally returned to England in 1722, instead of seeking out his wife, he went to the theatre, and espied a very beautiful young woman in one of the boxes. When he enquired who she was he was told that he must have been away for a long time, "not to know the toast of the town, the beautiful Lady March"[3]; his wife.

It became an extremely happy and close marriage and they had twelve children.[4]

  1. Lady Georgiana Caroline Lennox, born 27 March 1723 at London;[5]
  2. Son (unnamed), born and died 3 September 1724 at London;[6]
  3. Lady Louisa Margaret Lennox, born 15 November 1725 at London, died of a fever 1728 at Paris;
  4. Lady Anne Lennox, born possibly 27 May 1727, died young in 1727 or 1728 at London;[7]
  5. Charles Lennox, born 9 September 1730,[8] held courtesy title of Earl of March, but died young, and was buried 6 November 1730 at St Martin's-in-the-Fields;[9].
  6. Lady Emilia (Emily) Mary Lennox, born 6 October 1731;[10]
  7. Charles Lennox, born 22 February 1734/35 in Arlington Str, London,[11] who succeeded his father as 3rd Duke of Richmond;
  8. Lord George Henry Lennox, born 29 November 1737 in London;
  9. Lady Margaret Lennox, born 16 November 1739 in London, died young of small pox 10 January 1740/41 at Goodwood;
  10. Lady Louisa Augusta Lennox, born 24 November 1743 at London;
  11. Lady Sarah Lennox, born 14 February 1744/45 in London;
  12. Lady Cecilia Margaret Lennox, born 28 February 1749/50.

Her husband died 8 August 1750, and she 'completely heart-broken', survived him by only just over a year, dying on 25 August 1751.[12]


  1. Cokayne, et al, 1945, p. 839; the Wikipedia article has 18 September 1705 but all sources agree that she was only 13 when she married on 4 December 1719
  2. Cokayne, et al, 1945, p. 839; Tillyard, p. 10
  3. Tillyard, p. 10
  4. all references from Brydges, p. 208-210, unless otherwise specified
  5. confirmed in Cokayne, 1892, p. 242
  6. confirmed in Cokayne, et al, 1945, p. 840
  7. Brydges, p. 208 has born 27 May 1726 and died the following year, but this would be impossible if the birth date of her next eldest sister is correct
  8. Cokayne et al, 1945, p. 840 has 9 September; Brydges, p. 208 had 29 September
  9. Cokayne, et al, 1945, p. 840
  10. confirmed by Cokayne, 1893, p. 56, who gives her name as Amelia Mary
  11. Cokayne, et al, 1945, p. 840
  12. Cokayne et al, 1945, p. 839


  • Brydges, Sir Egerton. (1812). Collins's Peerage of England: genealogical, biographical and historical, Vol. 1. Retrieved from
  • Cokayne, George Edward (Ed.). (1892). Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, extant, extinct or dormant (1st ed. Vol. 4: G. to K.). London: George Bell & Sons. Retrieved from
  • Cokayne, George Edward (Ed.). (1893). Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, extant, extinct or dormant (1st ed. Vol. 5: L. to M.). London: George Bell & Sons. Retrieved from
  • Cokayne, George Edward, Doubleday, H.A., White, Geoffrey H., & Lord Howard de Walden (Eds.). (1945). The Complete Peerage: or a history of the House of Lords and all its members from the earliest times (2nd ed. Vol. 10). London: St Catherine Press.
  • Tillyard, Stella. (1994). Aristocrats: Caroline, Emily, Louisa and Sarah Lennox 1740-1832. London: Vintage.
  • Memorial: Find a Grave (has image)
    Find A Grave: Memorial #174984791 (accessed 6 May 2023)
    Memorial page for Sarah Cadogan Lennox (18 Sep 1705-25 Aug 1751), citing Chichester Cathedral, Chichester, Chichester District, West Sussex, England; Maintained by Billy Budd (contributor 51223934).


Thank you to Barry Meadows for creating Cadogan-13 on 10 Nov 13. Click the Changes tab for the details on contributions by Barry and others.

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It may be possible to confirm family relationships with Sarah by comparing test results with other carriers of her mitochondrial DNA. However, there are no known mtDNA test-takers in her direct maternal line. It is likely that these autosomal DNA test-takers will share some percentage of DNA with Sarah:

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Comments: 3

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I beleive Sarah WAS actually born in 1705, based on her sister Margaret's birth in February of 1707. This wouldn't have made sense if Sarah was born Sept. 1706. I also believe that the marriage date is correct, but the estimated age of Sarah was off. ~~~~
posted by Brad Cunningham
It depends on whether Margaret's birth date is February 1707/1708.
posted by John Atkinson
Yes good point but 1708 is Julian calendar. Anyway, no biggie, just a friendly heads up. -Brad
posted by Brad Cunningham

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