Thomas married Lady Isabella Somerset on 8 Apr 1828. Isabella (daughter of Henry Charles Somerset, 6th. Duke of Beaufort and Charlotte Sophia Leveson-Gower) was born on 19 Apr 1808; died on 4 Feb 1831. [Group Sheet]

1. Col. Sir Robert Nigel Fitzhardinge Kingscote was born on 28 Feb 1830; died on 22 Sep 1908 in Worth, Sussex, England; was buried on 25 Sep 1908 in Kingscote, Gloucestershire, England.

Thomas married Harriot Mary Anne Bloomfield on 5 Jun 1833 in St. George's, Hanover Sq. Middlesex, England. Harriot (daughter of Lt. Gen. Benjamin Bloomfield, 1st. Baron Bloomfield, G.C.B., G.C.H. and Harriott Douglas) was born about 1806; died on 31 Jul 1901 in Stretton Audley, Oxfordshire, England. [Group Sheet]

1. Major Fitzhardinge Kingscote was born on 16 Mar 1837 in Kingscote, Gloucestershire, England; died on 9 May 1900 in Bohemore, County Galway, Ireland; was buried on 12 May 1900 in Bohemore, County Galway, Ireland.
2. Thomas Arthur Fitzhardinge Kingscote, C.V.O. was born on 16 Jan 1845 in Kingscote, Gloucestershire, England; died on 21 Sep 1935 in Latton, Wiltshire, England; was buried on 25 Sep 1935 in Cirencester, Gloucestershire, England.
3. William Anthony Kingscote was born between 1 Oct 1848 and 31 Dec 1848 in Tetbury District, Gloucestershire, England; died on 11 Feb 1900 in Newcastle in Emlyn District, Cardiganshire, Wales.