À Court married, firstly, Catherine Bradford, daughter of John Bradford, in 1769. In 1777 Catherine A'Court died in Cheltenham, Gloucestershire; her memorial plaque in Cheltenham's parish church suggests this was due to her having been poisoned with arsenic by a servant. The following year à Court married Laetitia Wyndham, daughter of Henry Wyndham and sister of
Henry Penruddocke Wyndham, and together they had six children:
Lt.-Gen.
Charles Ashe à Court Repington (17 Jun 1785 – 19 Apr 1861), who married Mary Elizabeth Catherine Gibbs, granddaughter of Sir James Douglas, Foreign Minister to Naples. together they had
Elizabeth, and Charles Henry.
He died in July 1817 and was succeeded in the baronetcy by his son William, who became
Lord Lieutenant of Ireland and was elevated to the peerage as
Baron Heytesbury in 1828. Lady à Court died in 1821.
Col N.C.E. Kenrick, The Story of the Wiltshire Regiment (Duke of Edinburgh's): The 62nd and 99th Foot (1756–1959), the Militia and the Territorials, the Service Battalions and all those others who have served or been affiliated with the Moonrakers, Aldershot: Gale & Polden, 1963.
Kidd, Charles, Williamson, David (editors). Debrett's Peerage and Baronetage (1990 edition). New York: St Martin's Press, 1990, [page needed]