On 3 May 1768 Lord Macdonald married Elizabeth Diana Bosville (1748–1789) at St Giles in the Fields, London. She was the eldest daughter of Godfrey Bosville IV of Gunthwaite and of Thorpe Hall, Rudston, both in Yorkshire, and sister of the ardent Whig Colonel William Bosville (1745–1813). They had seven sons and three daughters, including:[2]
Hon. Archibald Macdonald (1777–1861), who married Jane Campbell, daughter of Duncan Campbell of Arneave, in 1802.[2]
Lady Macdonald died in 1789. Lord Macdonald survived her by six years and died in September 1795. He was succeeded in his titles by his son Alexander.[2]
^G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester: Alan Sutton Publishing, 2000), volume VIII, page 340.
^Anthony Camp, Royal Mistresses and Bastards 1714–1936 (2007) 104–111