William Montagu, 5th Duke of Manchester

Manchester was the eldest surviving son of George Montagu, 4th Duke of Manchester, and Elizabeth, daughter of Sir James Dashwood, 2nd Baronet.[1] He was educated at Harrow and then served in the British Army, achieving the rank of colonel in 1794.[2]

In 1788 he succeeded his father to his titles and the Kimbolton Castle estate in Huntingdonshire.

Manchester was Governor of Jamaica from 1808 to 1827. During his term, he oversaw the implementation of the abolition of the Slave Trade in the colony. In 1815 he dealt with the aftermath of the Port Royal fire and the devastation of Jamaican plantations by a hurricane. Manchester Parish in Jamaica was named after him, while the capital of Mandeville was named after his son, Viscount Mandeville.[3]

After his return to Britain Manchester served as Postmaster General between 1827 and 1830 (succeeding his younger brother Lord Frederick Montagu).[2][4] He was also Lord Lieutenant of Huntingdonshire between 1793 and 1841.[4]

Manchester married Lady Susan Gordon, third daughter of Alexander Gordon, 4th Duke of Gordon, on 7 October 1793. They had eight children:[5]

• Lady Jane Montagu (1794–1815).[6]
• George Montagu, 6th Duke of Manchester (1799–1855).[6]
• Lord William Francis Montagu (1800–1842),[6] married Emily, third daughter of James Du Pre[7]
• Lady Georgiana Frederica Montagu (1803–1892), married Evan Baillie and had issue.
• Lady Elizabeth Montagu,[8] married Thomas Steele and had issue, including Thomas Montagu Steele
• Lady Susan Montagu (c. 1801–1870),[9] married George Hay, 8th Marquess of Tweeddale and had issue.
• Lady Caroline Catherine Montagu (c. 1804–1892),[6] married John Calcraft and had issue.
• Lady Emily Montagu (1806–1827).[6]

The Duchess Susan caused a social scandal by eloping with one of her footmen. According to The Complete Peerage, "it is mentioned in the Memoirs of a Highland Lady, under date 1812, that 'the Duchess had left home years before with one of her footmen.' Lady Jerningham wrote, 6 September 1813: 'the Duchess of Manchester is finally parted from her husband, her conduct becoming most notoriously bad'". Having become a social outcast, Susan died at Eaton, Edinburgh, in August 1828, at age 54.

Manchester survived his wife by fifteen years and died in Rome, Italy, in March 1843, at age 71. He was succeeded in the dukedom by his son, George.[6]

• McNeill, Ronald John (1911). "Manchester, Earls and Dukes of" . In Chisholm, Hugh (ed.). Encyclopædia Britannica. 17 (11th ed.). Cambridge University Press. p. 543.CS1 maint: ref=harv (link)
• Lundy, Darryl (16 August 2011a). "William Montagu, 5th Duke of Manchester". thepeerage.com. p. 10644 § 106433.CS1 maint: ref=harv (link)
  • Cokayne, G.E.; et al., eds. (2000). The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant. XII/2 (new, reprint in 6 volumes ed.). Gloucester: Alan Sutton Publishing. p. 459.CS1 maint: ref=harv (link)
  • Mosley, Charles, ed. (1999). Burke's Peerage and Baronetage (106th in 2 volumes ed.). Crans, Switzerland: Burke's Peerage.CS1 maint: ref=harv (link)
  • Mosley 2003, volume 2, page 2585
• Lundy, Darryl (14 August 2011b). "James Dupré". thepeerage.com. p. 47658 § 476579.CS1 maint: ref=harv (link)
  • Mosley 2003, vol. 2, p. 2585
• Lundy, Darryl (25 August 2013). "Elizabeth Dashwood". thepeerage.com. p. 2938 § 29374.CS1 maint: ref=harv (link)
  • Mosley 2003, vol. 1, p. 1043
• Mosley, Charles, ed. (2003). Burke's Peerage, Baronetage & Knightage (107th in 3 volumes ed.). Wilmington, Delaware: Burke's Peerage.CS1 maint: ref=harv (link)