This family is descended from Thomas, youngest son of Sir John Hamilton of Cadzow, from which Thomas many families in Ulster descended; namely, those of Killyleagh, Hallcraig or Neillsbrook, Tollymore, Carnesure, Bangor, Ballygally, and Gransha; founded by the six sons of Hans Hamilton of Dunlop.
James, 1ST VISCOUNT CLANEBOYE;
ARCHIBALD, of whom we treat.
Susanna; Jane; Mary.
ARCHIBALD;The son and heir,
ARCHIBALD ROWAN-HAMILTON (1752-1834), of Killyleagh Castle, County Down,
whose patronymic was HAMILTON, assumed the additional surname of ROWAN, in conformity with the will of his maternal grandfather, WILLIAM ROWAN, who devised his fortune to his grandson, then a boy at Westminster School "in the hope that he should become a learned, honest, sober man; live unbribed and unpensioned; zealous for the rights of his country; loyal to his King; and a true protestant without bigotry to any sect."He married, in 1781, Sarah Anne, daughter of Walter Dawson, of Carrickmacross, County Monaghan, and had issue,
Archibald;Mr Rowan-Hamilton's second son,
GAWN WILLIAM ROWAN;
Jane; Elizabeth; Mildred; Harriet; Francesca.
CAPTAIN GAWN WILLIAM ROWAN ROWAN-HAMILTON CB RN (1783-1834), of Killyleagh Castle, who married, in 1817, Catherine, daughter of General Sir George Cockburn, by whom he had issue,
ARCHIBALD ROWN, his heir;He was succeeded by his elder son,
ARCHIBALD ROWAN ROWAN-HAMILTON JP (1818-), of Killyleagh Castle, who married, in 1842, Catherine Anne, daughter of Rev George Caldwell, in 1842, by whom he had issue,
GAWN WILLIAM, his heir;The eldest son,
Sidney Augustus Rowan;
Frederick Temple Rowan, father of GAWN BASIL GUY ROWAN-HAMILTON;
Mary Catherine; Helen Gwendoline; Harriet Georgina.
COLONEL GAWN WILLIAM ROWAN-HAMILTON JP DL (1844-1930), of Killyleagh Castle, and Shanagonagh Castle, County Dublin, married, in 1876, Lina Mary Howley, daughter of Sir George Howland Beaumont Bt, in 1876, and had issue,
ARCHIBALD JAMES;Colonel Rowan-Hamilton's only son,
ARCHIBALD JAMES ROWAN-HAMILTON (1877-1915), wedded, in 1908, Norah, daughter of Frederick Abiss Phillips.
He was killed in action in 1915, without issue, and was succeeded by his nephew,
BRIGADIER GAWN BASIL (GUY) ROWAN-HAMILTON DSO MC DL (1884-1947), of Killyleagh Castle, who married, in 1916, Phyllis Frances, daughter of Robert, Lord Blackburn, by his wife Lady Constance Frances Bowes-Lyon, and had issue,
Angus David;The second son,
LIEUTENANT-COLONEL DENYS ARCHIBALD ROWAN-HAMILTON MVO DL (b 1921), of Killyleagh Castle, married, in 1961, Wanda Annette, daughter of Lieutenant-Colonel Rupert Warburton;
educated at Wellington College, Berkshire, and Royal Military College, Sandhurst; fought 2nd World War; Member, Royal Victorian Order, 1947; Aide-de-Camp to the Governor of Southern Rhodesia, 1947; Major in 1953 in the 29th Britiish Infantry Brigade, Korea; Military Secretary to West Africa; 2nd in command of the 1st Black Watch, 1957-59; commander of the 45th Black Watch, 1960-63; Defence Attache to the British Embassy, Damascus and Beirut, 1964-67; retired from the military in 1967; High Sheriff of County Down, 1975.By his wife he had issue,
GAWN WILLIAM, b 1968;His son and heir,
GAWN WILLIAM ROWAN-HAMILTON, of Killyleagh Castle.
First published in August, 2013.