James Bruce (Chief Justice)
James Bruce( 1691–1749) was the Chief Justice of Barbados and the son of Alexander Bruce of Gartlet.
Through the paternal line James Bruce was a direct descendant of Thomas Bruce 1st Baron of Clackmannan.
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.
Charles Bruce, 5th Earl of Elgin
Charles Bruce, 5th Earl of Elgin and 9th Earl of Kincardine (6 July 1732 – 14 May 1771) was the son of William Bruce, 8th Earl of Kincardine.
His mother was Janet Roberton, daughter of James Roberton (principal Lord of Session) and great-granddaughter of advocate and judge Lord Bedlay
On 1 June 1759, he married Martha Whyte (1739-1810, who later became governess to Princess Charlotte of Wales.
They had eight children:
Elgin was Grand Master of Scottish Freemasons from 1761 to 1763 and a founding member of the Royal and Ancient Golf Club of St Andrews.
He built the planned industrial village of Charlestown, Fife.
He is buried in the southern transept of Dunfermline Abbey close to the grave of Robert the Bruce.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Fred Le Deux
Frederick" Fred" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).
He is the grandfather of Tom Hawkins.
Henry Krause
Henry J." Red" Krause, Jr.( August 28, 1913 – February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.
He played college football at St. Louis University.
He is the grandfather of Jennifer Krause
He is the great grandfather of Payton Hoeing
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
William Madison
William Madison( May 5, 1762 – July 20, 1843) was an American general.
He served in the War of 1812 and American Revolutionary War. Son of James Madison Sr. and Eleanor Rose Conway, he was the younger brother of James Madison, fourth President of the United States.
Madison married Frances Throckmorton and had eleven children.
He was the grandfather of Confederate Brigadier- General James E. Slaughter.
James Bruce (1769–1798)
James Bruce (1769–1798) was a Member of Parliament for Marlborough in the Parliament of Great Britain from 1796 until 1797.
The youngest of the five sons of Charles Bruce, 5th Earl of Elgin, and of Martha Bruce, Countess of Elgin and Kincardine (1739–1810), Bruce was a brother of the collector Thomas Bruce, 7th Earl of Elgin, known for bringing the Elgin Marbles from Athens.
He entered Westminster School in 1778 and was at Christ Church, Oxford, from 1786 to 1790, when he became a member of Lincoln's Inn.
For a year he was a Member of Parliament for Marlborough, taking a seat previously held by his uncle General Thomas Bruce, before resigning by "taking the Chiltern Hundreds".
He left parliament to accept a post as a "précis" writer at the Foreign Office at a salary of £300 a year.
On 10 July 1798, aged only twenty-nine, he was drowned while crossing the River Don at Barnby Dun in Yorkshire, when his horse was swept away by the stream.
He was remembered as amiable and virtuous.
Bruce Irwin
James Bruce Irwin( 17 November 1921 – 4 January 2012) was a New Zealand botanist.

Question: Who is the paternal grandfather of James Bruce (1769–1798)?
Answer: William Bruce, 8th Earl of Kincardine