), by
Hugh Douglas Hamilton, 1790s On 18 July 1799, Lord Mark Robert Kerr married
Lady Charlotte MacDonnell (1778–1835), third daughter of
Randal Macdonnell, 6th Earl and 1st Marquess of Antrim; she succeeded him as
Countess of Antrim (creation of 1785) suo jure (in her own right) on the death of
her elder sister. They had a large family, fifteen children in total, of which their surviving children included: • Lady Letitia Louisa Kerr (1800–1885), who married, as his second wife, Capt. Cortlandt George MacGregor Skinner of
Carisbrooke House,
Isle of Wight, a grandson of Gen.
Cortlandt Skinner, in 1871. • Lady Georgina Anne Emily Kerr (1807–1881), who married the Rev. Hon. Frederic Bertie, son of the
Willoughby Bertie, 4th Earl of Abingdon, and Charlotte Anne Emily Warren (a daughter of Vice-Admiral
Sir Peter Warren), in 1825. • Lady Caroline Mary Kerr (1807–1869), who married the Rev. Horace Robert Pechell, son of Augustus Pechell (a son of
Sir Paul Pechell, 1st Baronet) and Sarah Drake (a daughter of Rev. Thomas Drake), in 1826. • Charles Fortescue Kerr (1810–1834),
styled Viscount Dunluce, who died unmarried at Holmwood. •
Hugh Seymour McDonnell, 4th Earl of Antrim (1812–1855), who married Lady Laura Cecilia Parker, a daughter of
Thomas Parker, 5th Earl of Macclesfield, and his second wife, Eliza Wolstenholme (the daughter of William Breton Wolstenholme), in 1836. •
Mark McDonnell, 5th Earl of Antrim (1814–1869), a Captain who married Jane Emma Hannah Macan, daughter of Maj. Turner Macan and Harriet Sneyd (a daughter of Rev.
Wettenhall Sneyd), in 1849. • Lady Frederica Augusta Kerr (–1864), who married
Montagu Bertie, 5th Earl of Abingdon, son of
Willoughby Bertie, 4th Earl of Abingdon, and Charlotte Anne Emily Warren (a daughter of Vice-Admiral
Sir Peter Warren), in 1841. • Lady Emily Frances Kerr (1818–1874), who married Henry Richardson, of Somerset, County Londonderry, in 1839. After his death in 1849, she married barrister Sir Steuart Macnaghten, son of
Sir Francis Workman-Macnaghten, 1st Baronet, and Letitia Dunkin (a daughter of Sir
William Dunkin), in 1864. • Hon. Arthur Schomberg Kerr (1820–1850), who married Agnes Steuart Frankland, daughter of J. H. Frankland, of Eashing Park,
Godalming,
Surrey, in 1846. Upon the death of his wife in 1835, their eldest surviving son,
Hugh, succeeded to his mother's earldom as the 4th
Earl of Antrim. Lord Mark Kerr died on 9 September 1840 at his residence in
Henrietta Street,
Cavendish Square,
London.
Descendants Through his daughter Lady Caroline, he was a grandfather of Admiral
Mark Robert Pechell. ==References==