Lord Methuen married firstly Mary Catherine Jane Hooper in 1958; they divorced in 1993. He married secondly Margrit Andrea Hadwiger one year later. He has two daughters by his first wife: Charlotte Mary Methuen (born 1964) and Henrietta Christian Methuen-Jones (born 1965) who later changed her name to Kittie. Kittie was married to Robert Jones (who took the surname Methuen-Jones) and has three children: Teresa Methuen-Jones (born 1990), Keziah Methuen-Jones (born 1992) and Miriam Methuen-Jones (born 1997).
He died after a short illness on 9 July 2014. He was succeeded in the title by his first cousin once removed, James Methuen-Campbell (born 1952).[3]