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Viscount De L'Isle

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Title: Viscount De L'Isle  
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Subject: Australian peers and baronets, Delisle (surname), 1956 establishments in the United Kingdom, Philip Sidney, 2nd Viscount De L'Isle, Viscount Lisle
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Viscount De L'Isle

Arms of Sidney, Viscounts de Lisle: Or, a pheon azure[1]
Ceiling of the Sidney Chapel at St John the Baptist, Penshurst

Viscount De L'Isle, of GCMG, GCVO (1909–1991).


  • History 1
  • Shelley-Sidney Baronets, of Penshurst Place (1818) 2
  • Barons De L'Isle and Dudley (1835) 3
  • Viscounts De L'Isle (1956) 4
  • See also 5
  • References 6


This branch of the Shelley family descends from John Shelley-Sidney, the only son of the second marriage of Sir Bysshe Shelley, 1st Baronet, of Castle Goring (see Shelley Baronets for earlier history of the family) by Elizabeth Jane, daughter of William Perry and Elizabeth, daughter and heir of the Hon. Thomas Sidney, fourth son of Robert Sidney, 4th Earl of Leicester (a title which had become extinct in 1743; see the Earl of Leicester 1618 creation). In 1799 he assumed by Royal licence the additional surname of Sidney on succeeding to the estates, including Penshurst Place in Kent, of his maternal grandmother. In 1818 he was created a Baronet, of Penshurst in the County of Kent, in the Baronetage of the United Kingdom.

His son and heir apparent, Philip Sidney, represented Eye in the House of Commons. In 1835, fourteen years before succeeding his father in the baronetcy, he was raised to the Peerage of the United Kingdom as Baron De L'Isle and Dudley, of Penshurst in the County of Kent.[2] The title derived from the fact that the title of "Viscount De L'Isle" had been held by his ancestors the Earls of Leicester (in turn deriving from their ancestors), but had become extinct along with the earldom in 1743. The title of "Dudley" came from the fact that Robert Sidney, 1st Earl of Leicester (of the 1618 creation) was the nephew of Robert Dudley, 1st Earl of Leicester (of the 1564 creation), the fifth son of John Dudley, 1st Duke of Northumberland, who was as well Viscount Lisle by right of his mother. Lord De L'Isle and Dudley discontinued the use of the surname Shelley.

His grandson, the fifth Baron (who only held the titles for two months in 1945 after succeeding his elder brother), notably served as Mayor of Chelsea and was a member of the London County Council. His son, the sixth Baron, was a prominent Conservative politician and served as Secretary of State for Air from 1951 to 1955. In 1956 he was created Viscount De L'Isle, of Penshurst in the County of Kent, in the Peerage of the United Kingdom.[3] Lord De L'Isle later served as Governor-General of Australia. In 1965 he also succeeded his kinsman as ninth Baronet of Castle Goring. As of 2014 the titles are held by his son, the second Viscount, who succeeded in 1991.

The family seat is Penshurst Place, near Tonbridge, Kent. Close to it is the parish church of St John the Baptist where the Sidney Chapel houses many memorials to the family.

Shelley-Sidney Baronets, of Penshurst Place (1818)

Barons De L'Isle and Dudley (1835)

Viscounts De L'Isle (1956)

The heir apparent is the present holder's only son Hon. Philip William Edmund Sidney (b. 1985).

See also


  1. ^ Debrett's Peerage, 1967, p.335
  2. ^ The London Gazette: no. 19228. p. 42. 9 January 1835. Retrieved 4 October 2015.
  3. ^ The London Gazette: no. 40684. p. 278. 13 January 1956. Retrieved 4 October 2015.
  • Kidd, Charles, Williamson, David (editors). Debrett's Peerage and Baronetage (1990 edition). New York: St Martin's Press, 1990.
  • Leigh Rayment's Peerage Pages
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