Question: Who is the paternal grandfather of Arthur Jones, 2Nd Viscount Ranelagh?

Richard Wesley, 1st Baron Mornington
Richard Colley Wesley, 1st Baron Mornington (– 31 January 1758) was an Irish peer, best remembered as the grandfather of Arthur Wellesley, 1st Duke of Wellington.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Henry Arthur Jones
Henry Arthur Jones( 20 September 1851 – 7 January 1929) was an English dramatist.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Arthur Jones, 2nd Viscount Ranelagh
Arthur Jones, 2nd Viscount Ranelagh (died 1669) was an Irish peer and politician who sat in both the Irish House of Commons and the English House of Commons.
Jones was the son of Roger Jones, 1st Viscount Ranelagh and his wife Frances Moore, daughter of Sir Garret Moore, eventual 1st Viscount Moore of Drogheda.
He was Member of Parliament for Sligo Borough from 1634 to 1635 in the Parliament of Ireland.
In November 1640, Jones was elected to the Long Parliament as MP for Weobley in the Parliament of England.
but was disabled from sitting in 1643.
He succeeded to the titles of Baron Jones of Navan, and Viscount Ranelagh on the death of his father in 1643.
In 1630 Jones had married Katherine Boyle, the 15-year-old daughter of the Earl of Cork.
Her brothers included the chemist Robert Boyle and Lord Broghill, the later Earl of Orrery who was a prominent politician in Cromwellian and Restoration times.
They had 3 daughters and a son, Richard, who was created Earl of Ranelagh.
Arthur Probyn Jones
Sir Arthur Probyn Jones, 2nd Baronet( 28 July 1892 – 17 October 1951), was a British barrister, baronet and Liberal Party politician.
Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
Roger Jones, 1st Viscount Ranelagh
Roger Jones, 1st Viscount Ranelagh PC (Ire)
(before 1589 – 1643) was a member of the Peerage of Ireland and lord president of Connaught.
He was Chief Leader of the Army and Forces of Connaught during the early years of the Irish Confederate Wars.
In addition to Viscount Ranelagh, he held the title Baron Jones of Navan.
Jones was the only son of the Archbishop of Dublin and Lord Chancellor of Ireland, Thomas Jones, and his wife Margaret Purdon.
He was knighted at Drogheda on 24 March 1607.
In 1609, he married Frances Moore, the daughter of Sir Garret Moore, 1st Viscount Moore of Drogheda and Mary Colley.
Jones was a member of the Parliament of Ireland for the borough of Trim in County Meath from 1613 to 1615.
In 1620, he was named to the privy council of Ireland.
He was the Chief Leader of the Army and Forces of Connaught and was Vice President of Connaught from 1626.
In 1608 his father became involved in a bitter feud with Christopher St Lawrence, 10th Baron Howth, in which Roger also became embroiled.
His reference to Howth as "a brave man among cowards" was enough to provoke his opponent, a notoriously quarrelsome man, to violence.
In the spring of 1609, Jones, Howth and their followers engaged in a violent fracas at a tennis court in Thomas Street, Dublin, and a Mr. Barnewall was killed.
The Lord Deputy of Ireland, Sir Arthur Chichester, an enemy of Howth, had him arrested immediately, though he was never brought to trial.
On 25 August 1628, Jones was created Baron Jones of Navan and 1st Viscount Ranelagh by
King Charles I. He was made Lord President of Connaught on 11 September 1630 to serve alongside Charles Wilmot, 1st Viscount Wilmot.
Jones was killed in battle against Confederate forces under the leadership of Owen Roe O'Neill in 1643.
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Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Thomas Jones, 7th Viscount Ranelagh
Lieutenant-Colonel Thomas Heron Jones, 7th Viscount Ranelagh, (9 January 1812 – 13 November 1885) was known for his involvement in the volunteer movement to recruit amateur soldiers for the defence of Britain, and for his links to glamorous women, notably the Pre-Raphaelite model Annie Miller and the actress Lillie Langtry.
Heron Jones succeeded to the baronetcy becoming Viscount Ranelagh and Baron Jones of Navan in 1820 on the death of his father.

Answer: Thomas Jones