William Spencer Leveson-Gower, 4th Earl Granville, (11 July 1880 – 25 June 1953), styled The Honourable William Leveson-Gower until 1939, was a British naval commander and governor from the Leveson-Gower family. Background Leveson-Gower was the younger son of Granville Leveson-Gower, 2nd Earl Granville, by his second wife Castila Rosalind Campbell. Career After Wixenford School, William Leveson-Gower joined the Royal Navy in 1894. He was promoted to Sub Lieutenant in 1900, and lieutenant on 26 June 1902, when he was re-appointed to the torpedo cruiser HMS Scout. In August 1902 he was posted to HMS Hood, serving with the Mediterranean Fleet. Promotion to commander followed in 1913. He served in the First World War and was awarded the Distinguished Service Order in 1919. He was appointed Chief of Staff to the Commander-in-Chief, The Nore in 1924, aide-de-camp to the King in 1929 and Commander-in-Chief, Coast of Scotland in 1931. He was made a Companion of the Bath in 1930 and retired in 1935. Leveson-Gower became Lieutenant Governor of the Isle of Man in 1937. He set up the War Consultative Committee in November 1939 to act as a 'war cabinet' during World War II. The committee consisted of members of the House of Keys and the Legislative Council of the Isle of Man. In 1939 he succeeded his elder brother in the earldom. Granville was appointed a Knight Commander of the Royal Victorian Order (KCVO) in 1945 and became Governor of Northern Ireland in 1945, serving until 1952. He was made a Knight of the Garter that same year. Family In 1916, Lord Granville married Lady Rose Bowes-Lyon, the second surviving daughter of the 14th Earl of Strathmore and Kinghorne, and elder sister of Queen Elizabeth the Queen Mother. They had two children, five grandchildren and ten great-grandchildren: Lady Mary Cecilia Leveson-Gower (12 December 1917 – 13 February 2014), who married Sir Samuel Clayton (8 January 1918 – February 2004) on 7 July 1956. They had two children and one grandson: Gilbert Falkingham Clayton (4 September 1958), who married Rosalind Mullen in 1994. They have one son: Samuel Wittewronge Kit Clayton (February 2002) Rose Cecilia Clayton (25 January 1960), who married William Wordie Stancer on 9 July 1993. They have one son, Jamie Wordie,"Jock" (4 June 2001) Granville James Leveson-Gower, 5th Earl Granville (6 December 1918 – 31 October 1996), who married Doon Aileen Plunket (1931–2003) on 9 October 1958. They