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. A dancer and choreographer who performed as Peter Michael with the Markova-Dolin Ballet, Ballet Divertissement, Ballet Theatre, Ballet Joos, and the Repertory Dance Theatre from 1935 until 1945, Haden-Guest was a United Nations official from 1946 to 1972. He inherited his title in 1987. 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. Haden-Guest's maternal grandparents were both converts to Judaism, though both were of partial Jewish ancestry. Peter Haden-Guest was an atheist. 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. Lord Haden-Guest's eldest son, New York journalist Anthony Haden-Guest, was born before his parents were married and was thus ineligible for the title.