Peter Albert Michael Haden-Guest, 4th Baron Haden-Guest (29 August 1913 – 8 April 1996), was a British United Nations diplomat and member of the House of Lords.
Lord Haden-Guest was the fourth son of the 1st Baron Haden-Guest and Muriel Carmel (née Goldsmid), daughter of Albert Goldsmid (Muriel was the 1st Baron's second wife).
Peter Haden-Guest's father was a convert to Judaism who had later renounced the religion.
[1][2][3] Haden-Guest's maternal grandparents were both converts to Judaism, though both were of partial Jewish ancestry.
[5] Haden-Guest was married twice, his wives being: Upon his death, Lord Haden-Guest was succeeded by his son Christopher, an actor married to Jamie Lee Curtis.