Viscount Norwich of Aldwick in Sussex is in Viscountcies of England Alphabetically.
The London Gazette 39592. Whitehall, July 8, 1952
The Queen has been pleased by Letters Patent under the Great Seal of the Realm, bearing date the 5th instant, to confer the dignity of a Viscount of the United Kingdom upon the Right Honourable Sir Alfred Duff Cooper [aged 62], GCMG, DSO, and the heirs male of his body lawfully begotten, by the name, style and title of VISCOUNT NORWICH, of Aldwick in the County of Sussex. [Diana Manners Viscountess Norwich [aged 60] by marriage Viscountess Norwich of Aldwick in Sussex.]
On 1st January 1954 Alfred Duff Cooper 1st Viscount Norwich [aged 63] died. His son John [aged 24] succeeded 2nd Viscount Norwich of Aldwick in Sussex.
On 1st June 2018 John Julius Cooper 2nd Viscount Norwich [aged 88] died. His son Jason [aged 59] succeeded 3rd Viscount Norwich of Aldwick in Sussex.