The Earl Cadogan
Master of the Mint
In office
Preceded byThe Viscount Chetwynd
Succeeded byThe Earl of Effingham
Member of Parliament for Cambridge
In office
Preceded byViscount Dupplin
Thomas Bromley
Succeeded bySoame Jenyns
Benjamin Keene
In office
Serving with Viscount Dupplin
Preceded byViscount Dupplin
Christopher Jeaffreson
Succeeded byViscount Dupplin
Thomas Bromley
Personal details
Charles Sloane Cadogan

(1728-09-29)29 September 1728
Died3 April 1807(1807-04-03) (aged 78)
Santon Downham, Suffolk
Political partyWhig
Frances Bromley
(m. 1747; died 1768)
Mary Churchill
(m. 1777; div. 1796)
Parent(s)Charles Cadogan, 2nd Baron Cadogan
Elizabeth Sloane
RelativesSir Hans Sloane (grandfather)
Hans Stanley (cousin)
Alma materMagdalen College, Oxford

Charles Sloane Cadogan, 1st Earl Cadogan (29 September 1728 – 3 April 1807) was a British peer and Whig politician.

Early life

Cadogan was the only son of Charles Cadogan, 2nd Baron Cadogan and his wife, the former Elizabeth Sloane.[1]

His maternal grandparents were Elisabeth (née Langley) Sloane and Sir Hans Sloane, 1st Baronet.[2] Following the 1780 suicide of his cousin, Ambassador Hans Stanley (son of his maternal aunt Sarah Sloane Stanley and George Stanley of Paultons), he inherited Stanley's half of the Sloane estate.[2][3]

Cadogan was educated at Magdalen College, Oxford.[4][5]


From 1749 to 1754 and again from 1755, Cadogan was returned on the interest of his father-in-law, Lord Montfort, as a Member of Parliament for Cambridge until he inherited his father's title in 1776.[5] He was also appointed Keeper of the Privy Purse to Prince Edward in 1756, Surveyor of the King's Gardens from 1764 to 1769 and Master of the Mint from 1769 to 1784.[6] In 1800, he was elevated in the Peerage as 1st Viscount Chelsea and 1st Earl Cadogan.[5]

In 1774, Cadogan entered into an agreement to loan £20,500 to Sir Robert Cockburn, Sir George Colebrooke, John Stewart and John Nelson to enable the four men to purchase a 320-acre estate in St George Parish, Grenada, together with the enslaved people on the estate.[2]

In 1777 he leased 100 acres (0.40 km2) of the family estate in Chelsea to architect Henry Holland for building development. Holland built Sloane Square, Sloane Street, Cadogan Place and Hans Place.[7] Lord Cadogan also served as Sloane Trustee of the British Museum from 1779 until his death in 1807.[8]

Personal life

On 30 May 1747, Cadogan married Frances Bromley, a daughter of Henry Bromley, 1st Baron Montfort and the former Frances Wyndham (only daughter of Thomas Wyndham of Trent). Together, they had six children:[9][unreliable source]

Cadogan's first wife died in 1768, and on 10 May 1777, he married Mary Churchill, a daughter of Col. Charles Churchill and Lady Mary Walpole (a daughter of former Prime Minister Robert Walpole). Together, Mary and Charles were the parents of the following children before they divorced in 1796:[10]

Lord Cadogan died at Santon Downham, Suffolk on 3 April 1807,[5] and his titles passed to his eldest son by his first wife, Charles.[14]


  1. ^ Pearman, Robert (1986). The Cadogan Family: The History of a Landed Family. Haggerston Press. ISBN 978-1-869812-01-0. Retrieved 18 August 2021.
  2. ^ a b c "Charles Sloane Cadogan 1st Earl Cadogan". Centre for the Study of the Legacies of British Slavery. Retrieved 18 August 2021.
  3. ^ Bulley, Anjali (2017). Cadogan & Chelsea: The Making of a Modern Estate. Unicorn Publishing Group LLP. ISBN 978-1-910787-43-4. Retrieved 18 August 2021.
  4. ^ Pearman, Robert (1988). The First Earl Cadogan, 1672-1726. Haggerston. ISBN 978-1-869812-02-7. Retrieved 18 August 2021.
  5. ^ a b c d Sedgwick, Romney R. "CADOGAN, Hon. Charles Sloane (1728-1807), of Caversham, Oxon". History of Parliament Online. Retrieved 18 August 2021.
  6. ^ Craig, John (1953). The Mint: A History of the London Mint from A.D. 287 to 1948. Cambridge, England: Cambridge University Press. pp. 225–227. ASIN B0000CIHG7.
  7. ^ "A Walk through upper Chelsea and Belgravia". Archived from the original on 13 February 2010. Retrieved 26 February 2010.
  8. ^ "Our Heritage | Cadogan Estates, Chelsea, London UK". Retrieved 18 August 2021.
  9. ^ a b "Cadogan, Earl (GB, 1800)". Heraldic Media Limited. Retrieved 18 August 2021.
  10. ^ a b c d e f g h i j k Pearman, Robert (1990). The Cadogans at War, 1783-1864: The Third Earl Cadogan and His Family. Haggerston Press. p. 176. ISBN 978-1-869812-05-8. Retrieved 18 August 2021.
  11. ^ Cecil, Richard (1832). Life of the Honourable and Reverend William Bromley Cadogan ... Abridged. R.T.S. Retrieved 18 August 2021.
  12. ^ "Marriage - Tarbes, Hautes-Pyrénées, France, 1849" (Document). Tarbes, France: Archives Départementales des Hautes-Pyrénées, TD 1843 1852 2 E 4/112 Vue 113.
  13. ^ "Acte de décès Mairie Ayzac-Ost, 1851, Cadogan, Edouard" (Document). Tarbes, France: Archives Départementales des Hautes-Pyrénées.
  14. ^ Lundy, Darryl. "p. 10703 § 107026". The Peerage.[unreliable source]