Earl of Snowdon is a title in the Peerage of the United Kingdom. It was created in 1961, together with the subsidiary title Viscount Linley, of Nymans in the County of Sussex, for Antony Armstrong-Jones,[1] who was then the husband of HRH The Princess Margaret. Snowdon as a peerage title had previous royal associations; the title of Baron Snowdon had been conferred along with the Dukedom of Edinburgh on Prince Frederick Louis, grandson of George I and future Prince of Wales, in 1726. The title merged in the crown in 1760 when its holder acceded as George III.
In November 1999, Lord Snowdon received a life peerage as Baron Armstrong-Jones under a device designed to allow first-generation hereditaries to retain their seats in the House of Lords after the passing of the House of Lords Act 1999.[2][3]