Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Edmund Butler, 11th Viscount Mountgarret
Edmund Butler, 11th Viscount Mountgarret (27 July 1745 – 16 July 1793) was an Irish peer and politician.
He was the son of Edmund Butler, 10th Viscount Mountgarret and Charlotte Bradstreet, daughter of Sir Simon Bradstreet, 1st Bart.
He married with Henrietta Butler, daughter of Somerset Hamilton Butler, 1st Earl of Carrick on 7 October 1768 and had issued.
He was a Member of Parliament (MP) in the Irish House of Commons for Kilkenny County from 1776 to 1779.
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.
Pierce Butler (1774–1846)
Pierce Butler (6 May 1774 – 18 August 1846) was an Irish politician in the United Kingdom House of Commons.
Butler was the son of Edmund Butler, 11th Viscount Mountgarret and Lady Henrietta Butler.
He married Anne March, daughter of Thomas March, in 1800.
They had eleven children including:
He was elected to the United Kingdom House of Commons as Member of Parliament for County Kilkenny in 1832, and held the seat until 1846.
In the House he spoke against Tithe enforcement and against the continuation of the Act of Union.
He served as M.P. with his son.
Butler gained the rank of Colonel in the service of the Kilkenny Militia.
He died on 13 June 1846 at age 72.
Prithvipati Shah
Prithvipati Shah( ?–1716) was the king of the Gorkha Kingdom in the Indian subcontinent, present- day Nepal.
He was the grandfather of Nara Bhupal Shah.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Fujiwara no Nagara
, also known as Fujiwara no Nagayoshi, was a Japanese statesman, courtier and politician of the early Heian period.
He was the grandfather of Emperor Yōzei.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
Richard Smithwicke
Richard Smithwicke( 1804 – 20 November 1860) was an Irish Repeal Association politician.
Smithwicke was first elected MP for at a by-election in 1846 — caused by the death of Pierce Butler—and held the seat until 1847 when he did not seek re-election.

Question: Who is Pierce Butler (1774–1846)'s paternal grandfather?
Answer: Edmund Butler, 10th Viscount Mountgarret