Viscount de Lisle of Penshurst in Kent is in Viscountcies of England Alphabetically.
The London Gazette 40684. Whitehall, January 13, 1956. The Queen has been pleased by Letters Patent under the Great Seal of the Realm, bearing date the 12th instant, to confer the dignity of a Viscounty of the United Kingdom upon Colonel the Right Honourable William Philip [aged 46], Baron De L'Isle and Dudley VC, and the heirs male of his body lawfully begotten, by the name, style and title of Viscount De L'isle Of Penshurst In The County Of Kent. [Jacqueline Vereker Countess de l'Isle [aged 41] by marriage Viscountess de Lisle of Penshurst in Kent.]
On 5th April 1991 William Philip Sidney 1st Viscount de l'Isle [aged 81] died. His son Philip [aged 45] succeeded 2nd Viscount de Lisle of Penshurst in Kent, 7th Baron De Lisle and Dudley, 10th Baronet Shelley of Castle Goring in Sussex, 8th Baronet Shelley-Sidney of Penshurst Place in Kent.