See also

Frances LEVESON-GOWER's parents: John LEVESON-GOWER (1694-1754) and Evelyn PIERREPOINT (1691-1729)
Frances LEVESON-GOWER's siblings: John LEVESON-GOWER (1712-1723), Gertrude LEVESON-GOWER (1714-1794), William LEVESON-GOWER (1715-1739), Mary LEVESON-GOWER (1717-1778), Granville LEVESON-GOWER (1721-1803), Elizabeth LEVESON-GOWER (1724-1784), Evelyn LEVESON-GOWER (1725-1763), Richard LEVESON-GOWER (1726-1753), Catherine LEVESON-GOWER (1727-c. 1728) and Diana LEVESON-GOWER (1727-c. 1737)

Family of John Philip SACKVILLE and Frances LEVESON-GOWER

Husband:
John Philip SACKVILLE (1713-1765)
Wife:
Frances LEVESON-GOWER (1720-c. 1788)
Children:
Mary SACKVILLE (c. 1745-1778)
John Frederick SACKVILLE (1745-1799)
Marriage:
c. 1744¹

Husband: John Philip SACKVILLE

Name:
John Philip SACKVILLE
Sex:
Male
Father:
-
Mother:
-
Birth:
22 Jun 1713¹
Death:
3 Dec 1765 (age 52)
Geneva, Switzerland¹

Wife: Frances LEVESON-GOWER

Name:
Frances LEVESON-GOWER
Sex:
Female
Father:
John LEVESON-GOWER (1694-1754)
Mother:
Evelyn PIERREPOINT (1691-1729)
Birth:
12 Aug 1720¹
Death:
c. 1788 (age 67-68)¹

Child 1: Mary SACKVILLE

Name:
Mary SACKVILLE
Sex:
Female
Spouse:
Sackville TUFTON (1733-1786)
Birth:
c. 1745
Death:
30 Sep 1778 (age 32-33)²

Child 2: John Frederick SACKVILLE

Name:
John Frederick SACKVILLE
Sex:
Male
Spouse:
Arabella Diana COPE (c. 1769-1825)
Birth:
25 Mar 1745²
Title:
3rd Duke of Dorset
Death:
19 Jul 1799 (age 54)²

Sources

1.: wikipedia.org.

2.: thepeerage.com.