Duncombe married Lady Marjorie Blanche Eva Greville, daughter of
Francis Greville, 5th Earl of Warwick, in 1904. They had two sons and one daughter: • Lady Mary
Diana Duncombe (1905–1943), who married Lt. William Greville Worthington of
Kingston Russell. •
Charles Duncombe, 3rd Earl of Feversham (1906–1963), who also became a Conservative politician; he married Lady Anne Dorothy Wood, only daughter of
Edward Wood, 1st Earl of Halifax and Lady Dorothy Onslow (a daughter of
William Onslow, 4th Earl of Onslow), in 1936. • Hon. David Duncombe (1910–1927), who was killed in a car accident in 1927, aged 17. Duncombe lived at
Duncombe Park and, when in London, at 87
Eaton Square. He became master of the Sinnington Hunt in 1904. Through his son Charles, he was a grandfather of Lady Clarissa Duncombe (1938-2021), who married, as his second wife, Maj. Nicholas Spencer Compton Collin, of Wytherstone House,
Pockley. ==References==