On 20 October 1979 at
Romsey Abbey, she married
Lord Romsey, son and heir of the
2nd Countess Mountbatten of Burma and the
7th Lord Brabourne. The groom's second cousin,
Charles, Prince of Wales (later King Charles III), served as best man. The wedding took place two months after the assassination of her husband's grandfather, the
1st Earl Mountbatten of Burma, by an
IRA bomb. The family seat is
Broadlands,
Hampshire. Lady Mountbatten and her husband 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. • 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 the family home,
Broadlands. The charity
Leonora Children's Cancer Fund was founded in her memory. From her marriage in 1979 until her father-in-law's death in 2005, she was styled as
Lady Romsey and from then until her mother-in-law's death in 2017 as
The Lady Brabourne. ==In popular culture==