The prospective bride's full name is (Alexandra) Constance Harriet FOSTER and she was born in 1990 as the eldest of the three daughters of Toby James FOSTER (born 23 I 1958) and his wife (married 1988), Arabella Charlotte Lucinda LAING (born 9 III 1960). Through her mother, she is a great-granddaughter of Sir Geoffrey William PENNINGTON-RAMSDEN, 7th Bt (28 VIII 1904 - 13 I 1986). For more details of her mother's ancestry, including descents from the 12th Duke of Somerset, the Suffield Barons, the Buxton baronets, and the Gurney landed gentry family, see http://www.thepeerage.com/p55537.htm#i555364.
Toby James FOSTER is the elder son of David Aubrey Clarence FOSTER (1930 - 17 IX 1991) and his wife Gyllian Diana Hesworth SMITH (1930 - 17 VI 2020). His paternal grandparents were Clarence Hubert Murrell FOSTER (1891 - 16 VII 1966; described in one source as "Editorial Secretary of The Children's Special Service Mission and The Scripture Union") and his wife (married 1927), Dorothy Haworth Brown CORSAR (18 II 1900 - 25 III 1995).