Christopher Finch-Hatton, 15th Earl of Winchilsea

On 17 June 1946, he married for the second time to Agnes Mary Conroy, daughter of Patrick Joseph Conroy at the Corpus Christi Church in London. He died on 7 March 1950 at age 38 and was succeeded by his son Christopher.

On 10 July 1935, he married fellow half-American, Countess Gladys Széchényi Sárvár-Felsövidék (1913–1978), daughter of Count László Széchényi Sárvár-Felsövidék (1879–1938) and Gladys Moore Vanderbilt (1886–1965). Vanderbilt was the seventh and youngest child of Alice Claypoole Gwynne (1845–1934) and Cornelius Vanderbilt II (1843–1899), the president and chairman of the New York Central Railroad, and grew up in the family home on Fifth Avenue in New York City, and their summer "cottage," The Breakers (built in 1893) in Newport, Rhode Island. Before divorcing in March 1945, Finch-Hatton and Széchenyi had two sons:

Christopher Guy Heneage Finch-Hatton (2 August 1911 – 7 March 1950) was the 15th Earl of Winchilsea and 10th Earl of Nottingham. He acceded to the titles in 1939 on the death of his father, Guy Finch-Hatton, 14th Earl of Winchilsea. His mother was Margaretta Armstrong Drexel, the daughter of banker Anthony Joseph Drexel of Philadelphia.

Finch-Hatton was born on 2 August 1911 to Guy Finch-Hatton, 14th Earl of Winchilsea (1885–1939) and his wife Margaretta Armstrong Drexel (1885–1952). His paternal grandfather was Henry Finch-Hatton, 13th Earl of Winchilsea (1852–1927), and his great-grandfather was Admiral Sir Henry Codrington (1808–1877), a captain who provided refuge on board ship for Leopold II, Grand Duke of Tuscany and his family who were fleeing from revolutionary forces and then commanded HMS Royal George in the Baltic Sea during the Crimean War. Codrington went on to be Admiral superintendent of Malta Dockyard and then Commander-in-Chief, Plymouth.

His maternal grandfather was banker Anthony J. Drexel Jr. (1864–1934) of Philadelphia, and his great-grandfather was Anthony Joseph Drexel (1826–1893), the founder of Drexel, Morgan & Co., along with J. P. Morgan, in New York in 1871, as well as the founder of Drexel University in 1891.