Algernon Seymour, 7th Duke of Somerset

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General Algernon Seymour, 7th Duke of Somerset (11 November 1684 – 7 February 1750), styled Earl of Hertford until 1748, was a British soldier, politician and landowner.

Background[edit]

Seymour was the only son of Charles Seymour, 6th Duke of Somerset by his first wife, the heiress Lady Elizabeth Percy, deemed Baroness Percy in her own right, the only surviving child of Joceline Percy, 11th and last Earl of Northumberland.[1]

Public life[edit]

Seymour was returned to Parliament for Marlborough in 1705, a seat he held until 1708, and then represented Northumberland until 1722. He was Lord-Lieutenant of Sussex from 1706 to 1750 and Custos Rotulorum of Wiltshire from 1726 to 1750. In 1737 he was appointed Governor of Minorca, a post he held until 1742, and then served as Governor of Guernsey until 1750. In 1748 he succeeded his father in the dukedom.

Land ownership and titles[edit]

The Duke's only son Lord Beauchamp died unmarried in 1744, aged 19 (see below). In 1748 Somerset was created Baron Warkworth, of Warkworth Castle in the County of Northumberland, and Earl of Northumberland, with remainder to his son-in-law, Sir Hugh Smithson, 4th Baronet,[2] with the intention that the majority of the Percy estates should descend in this line. He was at the same time created Baron of Cockermouth, in the County of Cumberland, and Earl of Egremont, with remainder to his nephews, Sir Charles Wyndham, 4th Baronet, of Orchard Wyndham, and Percy Wyndham-O'Brien,[2] a revival of the Egremont title held by an earlier member of the Percy family, Thomas Percy, 1st Baron Egremont.

Family[edit]

Somerset married Frances Thynne, daughter of Henry Thynne (1675–1708) and granddaughter of Thomas Thynne, 1st Viscount Weymouth, in 1713. They had two children:

Algernon died in 1750 and was buried in the Northumberland Vault, within Westminster Abbey.[3] He was one of the richest landowners in England, but as he died with no surviving son his estates were split after his death. The ducal title passed to a distant cousin, Edward Seymour, 8th Duke of Somerset. The earldom of Northumberland and most of the traditional Percy estates passed to his daughter and her husband (see Alnwick Castle, Northumberland House and Syon House). Petworth in Sussex passed to the duke's nephew Charles Wyndham, 2nd Earl of Egremont. Later dukes of Somerset lived at Maiden Bradley, a far more modest estate than those already mentioned.

Ancestry[edit]

References[edit]

Parliament of England
Preceded by
Edward Ashe
John Jeffreys
Member of Parliament for Marlborough
1705–1707
With: John Jeffreys
Succeeded by
Parliament of Great Britain
Parliament of Great Britain
Preceded by
Parliament of England
Member of Parliament for Marlborough
17071708
With: John Jeffreys 1707–1708
Robert Bruce 1708
Succeeded by
Robert Bruce
Sir Edward Ernle
Preceded by
Thomas Forster
Sir John Delaval, Bt
Member of Parliament for Northumberland
17081722
With: Thomas Forster 1708–1716
Francis Delaval 1716–1722
Succeeded by
Francis Delaval
Sir William Middleton
Military offices
Preceded by
Emanuel Scrope Howe
Colonel of the Earl of Hertford's Regiment of Foot
1709–1715
Succeeded by
Henry Harrison
Preceded by
The Duke of Northumberland
Captain and Colonel of
The Queen's Troop of Horse Guards

1715–1740
Succeeded by
The Duke of Marlborough
Preceded by
Richard Kane
Governor of Minorca
1737–1742
Succeeded by
The Earl of Stair
Preceded by
The Duke of Argyll
Colonel of the Royal Horse Guards
1740–1742
Succeeded by
The Duke of Argyll
Preceded by
The Earl of Pomfret
Governor of Guernsey
1742–1750
Succeeded by
Sir John Ligonier
Preceded by
The Duke of Argyll
Colonel of the Royal Horse Guards
1742–1750
Succeeded by
The Duke of Richmond
Honorary titles
Preceded by
The Earl of Dorset
Lord Lieutenant of Sussex
1706–1750
Vacant
Title next held by
The Earl of Ashburnham
Preceded by
The Duke of Kingston-upon-Hull
Custos Rotulorum of Wiltshire
1726–1750
Succeeded by
Robert Sawyer Herbert
Peerage of England
Preceded by
Charles Seymour
Duke of Somerset
1748–1750
Succeeded by
Edward Seymour
Earl of Hertford
1748–1750
Succeeded by
Francis Seymour-Conway
Baron Beauchamp
1748–1750
Extinct
Baron Seymour of Trowbridge
1748–1750
Peerage of Great Britain
New creation Earl of Northumberland
1749–1750
Succeeded by
Hugh Percy
Earl of Egremont
1749–1750
Succeeded by
Charles Wyndham
Baron Percy
1722–1750
Succeeded by
Elizabeth Smithson