Lord Gardner first married Frances Margaret Hughes (12 October 1814 – 3 December 1847) in 1835. The marriage was childless. After her death he married secondly the actress Julia Sarah Hayfield Fortescue (1817 – 3 November 1899 Brighton), daughter of Edward E. T. Fortescue, in December 1848 at St George's, Hanover Square, London. They had several children born before and after their marriage; as his former mistress, she was unacceptable in Victorian high society. His son
Herbert Gardner, born two years before his parents' wedding, became a
Liberal politician and was created
Baron Burghclere in 1895. One of Lord Gardner's legitimate daughters, the Hon. Florence (7 Feb 1853 – 3 Aug 1934), was the wife of
William Onslow, 4th Earl of Onslow, sometime
Governor-General of New Zealand; a granddaughter Lady Dorothy Onslow married
Edward Wood, 1st Earl of Halifax and became
Vicereine of India. Gardner died in November 1883, aged 73, when his titles became dormant. Lady Gardner died in 1899. Issue, according to Fortescue website: • a son (b 1842), possibly Col.
Alan Coulston Gardner (d 1907); he married and had issue two sons, but was illegitimate so could not inherit the 1798 barony. • a son (born 1843) •
Herbert Gardner (1846–1921), who married Lady Winifred Byng, née Herbert, daughter of the 4th Earl of Carnarvon, and had issue 4 daughters. One daughter Evelyn was the first wife of
Evelyn Waugh and was thus known as "She-Evelyn". Another daughter married
Geoffrey Hope-Morley, 2nd Baron Hollenden. • Hon. Florence Coulston Gardner (7 Feb 1853 – 3 Aug 1934), married
William Onslow, 4th Earl of Onslow, sometime
Governor-General of New Zealand, and had issue. • Hon. Evelyn Coulston Gardner (1856–1902), married 1881 William Fuller Maitland and had issue == Notes ==