He was elder s&ha of 8th Earl of MEXBOROUGH b 1931 and his 1st w Lady Elizabeth Harriot GRIMSTON 1939-87 d of 6th Earl of VERULAM 1912-73 and Marjorie Ray 1918-94 d of Walter Atholl DUNCAN 1874-1932 of Cadogan Square, London SW and Clara Ray PARKS 1889-1966. He m as her 2nd h 2019 Norma Isolde b 1963 d of John R PHOENIX by his 1957 m to May E VAUGHAN, but had no issue.
Lord Mexborough’s yr son from his second m is now the heir to his father’s title:
Hon JAMES HUGH HOPE JOHN Savile b 21 Aug 1976: m 2010 Victoria Sian b 1979 reg Q3 Notts d of Nicholas FORMAN HARDY b 1948 reg Q3 Notts, of Car Colston, Notts by his c1978 m reg Q1 Northants to Jane Maude THOMAS b 1951 reg Q4 Northants, and has three sons (Arthur John Hope Thomas b 1 Dec 2011, Ludovic Henry Nicholas Raphael b 7 Feb 2014, Rory Alexander Louis Elwyn b 6 July 2017).