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).
Henry Cubitt, 4th Baron Ashcombe
Henry Edward Cubitt, 4th Baron Ashcombe( 31 March 1924 – 4 December 2013), was a British peer.
He was the son of Roland Cubitt, 3rd Baron Ashcombe, and Sonia Rosemary Keppel, and the uncle and godfather of Camilla, Duchess of Cornwall.
Henry Bryant (naturalist)
Henry Bryant( May 12, 1820 – February 2, 1867) was an American physician and naturalist.
He was the grandfather of Henry Bryant Bigelow.
Henry Wentworth
Sir Henry Wentworth of Nettlestead, Suffolk, KB( born c. 1448 – died between 17 August 1499 and 27 February 1501)," de jure" 4th Baron le Despencer, was the grandfather of Henry VIII's third wife, Jane Seymour, and the great- grandfather of Jane's son, Edward VI.
Henry Cubitt, 2nd Baron Ashcombe
Henry Cubitt, 2nd Baron Ashcombe (14 March 1867 – 27 October 1947), was a British politician and peer, the son of George Cubitt, 1st Baron Ashcombe, and his wife Laura Joyce.
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.
Roland Cubitt, 3rd Baron Ashcombe
Roland Calvert Cubitt, 3rd Baron Ashcombe,( 26 January 1899 – 28 October 1962) was a member of the British aristocracy.
He became Baron Ashcombe on the death of his father Henry Cubitt, 2nd Baron Ashcombe, in 1947.
He is also the maternal grandfather of Camilla, Duchess of Cornwall( born Camilla Shand), now the wife of Charles, Prince of Wales.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
George Cubitt, 1st Baron Ashcombe
George Cubitt, 1st Baron Ashcombe, (4 June 1828 – 26 February 1917) was a British politician and peer, a son of Thomas Cubitt, the leading London builder and property developer of his day.

Question: Who is the paternal grandfather of Henry Cubitt, 2Nd Baron Ashcombe?
Answer: Thomas Cubitt