George Child Villiers, 9th Earl of Jersey
George Francis Child- Villiers, 9th Earl of Jersey( 15 February 1910 – 9 August 1998), was an English peer and politician from the Villiers family.
He was the son of George Child- Villiers, 8th Earl of Jersey and gave one of the family seats, Osterley Park, to the British nation in the late 1940s.
Victor Child Villiers, 7th Earl of Jersey
Victor Albert George Child Villiers, 7th Earl of Jersey,( 20 March 1845 – 31 May 1915) was a British banker, Conservative politician and colonial administrator from the Villiers family.
He served as Governor of New South Wales between 1891 and 1893.
Randal Plunkett, 19th Baron of Dunsany
Randal Arthur Henry Plunkett, 19th Baron of Dunsany( 25 August 1906 – 8 February 1999) was an Irish peer.
An only child, he was the son of author and playwright Edward Plunkett, 18th Baron of Dunsany and Lady Beatrice Child Villiers, daughter of Victor Child Villiers, 7th Earl of Jersey.
George Villiers, 4th Earl of Jersey
George Bussy Villiers, 4th Earl of Jersey, PC (9 June 173522 August 1805, Tunbridge Wells) was an English nobleman, peer, politician and courtier at the court of George III.
He was the oldest surviving son of William Villiers, 3rd Earl of Jersey, and his wife, the former Lady Anne Egerton, the daughter of Scroop Egerton, 1st Duke of Bridgewater, and widow of Wriothesley Russell, 3rd Duke of Bedford.
Frederick Child Villiers
Frederick William Child- Villiers( 20 July 1815 – 23 May 1871) was a British Conservative politician.
Child- Villiers was the son of George Child Villiers, 5th Earl of Jersey and Lady Sarah Sophia Fane.
In 1842, he married Lady Elizabeth van Reede, daughter of Reynoud Diederik Jacob van Reede, 7th Earl of Athlone and Henrietta Dorothea Maria née Hope, but they had no children.
Child- Villiers was elected Conservative Member of Parliament for Weymouth and Melcombe Regis at a by-election in 1847 — caused by the resignation of William Dougal Christie—and held the seat until 1852 when he did not seek re-election.
He was also a Lieutenant- Colonel in the 73rd( Perthshire) Regiment of Foot, and, in 1869, High Sheriff of Northamptonshire.
George Child-Villiers, Viscount Villiers
George Henry Child- Villiers, Viscount Villiers( 29 August 1948 – 19 March 1998) was the first son of George Child- Villiers, 9th Earl of Jersey.
He was a member of the Villiers family.
He married firstly 22 December 1969( divorced 1973)
Verna P. Stott, daughter of Kenneth A. Stott.
In 1973, she married Sir Jeremy James Hanley, KCMG, PC.
They had issue, one daughter.
Lord Villiers married secondly 9 January 1974( divorced 1988)
Sacha Jane Hooper Lauder," née" Valpy( now Mrs Sacha Hubbard), and had issue, one son and two daughters.
He married lastly 1992, Stephanie Louisa Penman( who after his death married Martin Morley in 1998 then divorced him in April 1999), and had issue, a second son.
Thus his children are:
George Child Villiers, 6th Earl of Jersey
George Augustus Frederick Child Villiers, 6th Earl of Jersey( 4 April 1808 – 24 October 1859), styled Viscount Villiers until 1859, was an English peer and politician from the Villiers family.
Francis Child Villiers
The Hon. Francis John Robert Child Villiers( 11 October 1819 – 8 May 1862) was a British Conservative Party politician.
Child Villiers was the fourth son of George Child Villiers, 5th Earl of Jersey, by his wife Lady Sarah Fane.
He was elected as a Member of Parliament( MP) for the borough of Rochester in Kent at the 1852 general election and resigned through appointment as Steward of the Chiltern Hundreds on 22 November 1855.
Villiers was appointed a Steward of the Jockey Club in 1853.
In 1855 he left the country, with £ 100,000 of betting debts unpaid.
George Child Villiers, 5th Earl of Jersey
George Child Villiers, 5th Earl of Jersey, GCH, PC (19 August 1773 – 3 October 1859), previously George Villiers and styled Viscount Villiers until 1805, was a British courtier and Conservative politician from the Villiers family.
He added the name of Child to his own by royal license in 1819.
George Child Villiers, 8th Earl of Jersey
George Henry Robert Child Villiers, 8th Earl of Jersey DL( 2 June 1873 – 31 December 1923), was a British peer and Conservative politician from the Villiers family.
Villiers was the son of Victor Child Villiers, 7th Earl of Jersey, and the Honourable Margaret Elizabeth, daughter of William Henry Leigh, 2nd Baron Leigh.
He succeeded his father in the earldom in 1915 and served briefly as a Lord- in- waiting under David Lloyd George between January and August 1919.
Lord Jersey sold the Child& Co bank, part of the family's inheritance since the 5th Earl married into the Child family, to Glyn, Mills& Co. Bank in 1923.

Question: Who is the paternal grandfather of George Child Villiers, 5Th Earl Of Jersey?
Answer: William Villiers, 3rd Earl of Jersey