Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
George Rodney, 3rd Baron Rodney
George Rodney, 3rd Baron Rodney (18 June 1782 – 21 June 1842), was a British peer.
Rodney was the eldest son of George Rodney, 2nd Baron Rodney, by Anne Harley, daughter and heiress of Thomas Harley.
He succeeded his father in the barony in 1802, aged 19, inheriting Old Alresford House.
In 1804 he was appointed Lord-Lieutenant of Radnorshire (succeeding his grandfather Thomas Harley), a post he held until his death in 1842.
Lord Rodney married Charlotte Georgiana Gould-Morgan, daughter of Sir Charles Morgan, 2nd Baronet, in 1819.
There were no children from the marriage.
He died in June 1842, three days after his 60th birthday, and was buried at Old Alresford, Hampshire.
His younger brother Thomas succeeded in the barony.
Lady Rodney died in February 1878.
Kaoru Hatoyama
After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama.
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Anne Denman
Anne Denman( 1587–1661) was born in Olde Hall, Retford, Nottinghamshire.
Through a fortunate second marriage with Thomas Aylesbury, she became the grandmother of Lady Anne Hyde, Duchess of York and great- grandmother of Queen Mary II and Queen Anne.
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She is the grandmother of Akhenaten, and great grandmother of Tutankhamun.
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Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.
She was the grandmother of the painter Jean H. Bell.
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Éléonore Marie Desmier d'Olbreuse (3 January 1639 – 5 February 1722) was the wife of George William, Duke of Lauenburg and Prince of Celle.
She was the mother of Sophia Dorothea of Celle, who was the wife of George I of Great Britain.
Thus she is the maternal grandmother of George II.
George Rodney, 2nd Baron Rodney
Lieutenant-Colonel George Rodney, 2nd Baron Rodney (25 December 1753 – 2 January 1802), was a British soldier and politician.
Rodney was the son of Admiral George Rodney, 1st Baron Rodney, by his first wife Lady Jane Compton, daughter of the Honourable Charles Compton.
His mother died when he was three years old.
Rodney was a captain in the 3rd Foot Guards and a lieutenant-colonel in the British Army.
In 1780 he was returned to Parliament for Northampton, a seat he held until 1784.
In 1792 he entered the House of Lords on the death of his father and inherited Old Alresford House, built by his father at Old Alresford, Hampshire.
Lord Rodney married Anne Harley, daughter of the Honourable Thomas Harley, in 1781.
They had nine sons and one daughter.
He died in January 1802, aged 48, and was succeeded by his eldest son, George.
Lady Rodney died in April 1840, aged 80.

Question: Who is the paternal grandmother of George Rodney, 3Rd Baron Rodney?
Answer: Lady Jane Compton