See also

Granville LEVESON-GOWER's parents: William Spencer LEVESON-GOWER (1880-1953) and Rose BOWES-LYON (1890-1967)
Granville LEVESON-GOWER's sister: Mary Cecillia LEVESON-GOWER (1917-2014)

Family of Granville James LEVESON-GOWER

Partner:
Granville James LEVESON-GOWER (1918-1996)
Partner:
(unknown)
Children:
Marcia Rose Aileen LEVESON-GOWER (1961-2005)
Marriage:
9 Oct 1958¹

Partner: Granville James LEVESON-GOWER

Name:
Granville James LEVESON-GOWER
Sex:
Male
Father:
William Spencer LEVESON-GOWER (1880-1953)
Mother:
Rose BOWES-LYON (1890-1967)
Birth:
6 Dec 1918²
Title:
5th Earl Granville
Death:
31 Oct 1996 (age 77)²

Child 1: Marcia Rose Aileen LEVESON-GOWER

Name:
Marcia Rose Aileen LEVESON-GOWER
Sex:
Female
Birth:
10 Feb 1961¹
Death:
3 Aug 2005 (age 44)¹

Sources

1.: thepeerage.com.

2.: wikipedia.org.