Edward St Maur, 11th Duke of Somerset

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Edward Adolphus St Maur, 11th Duke of Somerset KG, FRS (24 February 1775 – 15 August 1855), styled Lord Seymour until 1793, was a British landowner and amateur mathematician.


Seymour was born at Monkton Farleigh, Wiltshire, the son of Webb Seymour, 10th Duke of Somerset, and Mary Bonnell, daughter of John Bonnell, of Stanton Harcourt, Oxfordshire. He was baptised on 4 April 1775 at Monkton Farleigh, Wiltshire.[1] He was baptised with the name of Edward Adolphus Seymour, but legally changed it to Edward Adolphus St. Maur[citation needed]. In 1793 he succeeded his father in the dukedom.

Public life[edit]

In 1795, in the company of Reverend John Henry Michell, Somerset undertook a tour through England, Wales and Scotland, his journal of which was published in 1845.[2] The tour took him as far as the isles of Staffa and Iona in the Hebrides. He was a patron of the Free Church of England. He was a gifted mathematician and served as President of the Linnean Society of London from 1834 to 1837 and as President of the Royal Institution from 1826 to 1842. He was also a Fellow of the Royal Society. In 1837 he was made a Knight of the Garter.[3]


Somerset married, firstly, Lady Charlotte Douglas-Hamilton (6 April 1772 – Somerset House, Park Lane, London, 10 June 1827), daughter of Archibald Hamilton, 9th Duke of Hamilton, and Harriet Stewart, on 24 June 1800. They had seven children:

After his first wife's death in 1827 he married, secondly, Margaret Shaw-Stewart (d. Somerset House, Park Lane, London, 18 July 1880), daughter of Sir Michael Shaw-Stewart, of Blackhall, Renfrewshire, 5th Baronet, and his wife Catherine Maxwell, daughter of Sir William Maxwell, 3rd Baronet, in Marylebone, Portland Place, London, on 28 July 1836. There were no children from this marriage.[4]

In 1808, Somerset bought a house in Park Lane to act as his town house, which became known as Somerset House, and spent much of his time there.[5] In 1829 he bought Stover House in Devon, the Stover Canal and the Haytor quarries and Granite Tramway from George Templer.[6] Somerset died at Somerset House, in Park Lane, London, in August 1855, aged 80, and was buried like his second wife at Kensal Green Cemetery, London.


  1. ^ The Complete Peerage vol.XIIpI, p.85.
  2. ^ Michell, John Henry, Rev. The Tour of the Duke of Somerset, and the Rev. J. H. Michell, Through Parts of England, Wales, and Scotland in the Year 1795, R. Clay, London 1845
  3. ^ The London Gazette: no. 19486. p. 1026. 21 April 1837.
  4. ^ http://www3.dcs.hull.ac.uk/cgi-bin/gedlkup/n=royal?royal15537
  5. ^ 'Park Lane', in Survey of London: volume 40: The Grosvenor Estate in Mayfair, Part 2 (The Buildings) (1980), pp. 264-289, accessed 15 November 2010
  6. ^ M.C. Ewans, The Haytor Granite Tramway and Stover Canal, David & Charles, Newton Abbott, 1966, p. 23

External links[edit]

Honorary titles
Title last held by
The Earl of Egmont
Vice-Admiral of Somerset
Peerage of England
Preceded by
Webb Seymour
Duke of Somerset
Succeeded by
Edward Seymour