Mountbatten is married to
Penelope Meredith Eastwood (born 16 April 1953), a daughter of Reginald Wray Frank Eastwood (1912–1980), a self-made millionaire former butcher who founded the
Angus Steakhouse chain, and Marian Elizabeth (1926–2020), née Hood. They were wed on 20 October 1979 at
Romsey Abbey, less than two months after the
IRA murdered his 79-year-old maternal grandfather,
Louis Mountbatten, 1st Earl Mountbatten of Burma; his 14-year-old younger brother, Nicholas Knatchbull; and his 83-year-old paternal grandmother,
Doreen Knatchbull, Dowager Lady Brabourne. The family home is
Broadlands,
Hampshire. The 3rd Earl Mountbatten of Burma and his wife have three children and three grandsons: • Nicholas Louis Charles Norton Knatchbull, Lord Brabourne (born 15 May 1981), his father's
heir apparent; married Ambre Pouzet on 20 May 2021 at Broadlands. They have two children: • The Hon. Alexander Knatchbull (born June 2022) • The Hon. Endora Luna Marie Knatchbull (born 2025) • Lady Alexandra Victoria Edwina Diana Hooper (
née Knatchbull; born 5 December 1982); a goddaughter of
Diana, Princess of Wales. She married Thomas Edward Huntly Hooper on 25 June 2016, at
Romsey Abbey. They have two sons: • Inigo Norton Sebastian Mountbatten Hooper (born 21 December 2017) • Alden Peter Theodore Mountbatten Hooper (born 27 March 2020) • The Hon. Leonora Louise Marie Elizabeth Knatchbull (25 June 1986 – 22 October 1991). She died of
kidney cancer at the age of five years and is buried in the grounds of Broadlands. The charity
Leonora Children's Cancer Fund was founded in her memory. From 2010 to 2014, Mountbatten was in an extramarital relationship with Eugenie, Lady Nuttall, widow of
Sir Nicholas Nuttall, 3rd Baronet, who was heir to the
Edmund Nuttall Limited construction company. ==Titles==