George Windsor, Earl of St Andrews
George Philip Nicholas Windsor, Earl of St Andrews (born 26 June 1962) is the elder son of Prince Edward, Duke of Kent, and his wife Katharine, Duchess of Kent.
He is styled Earl of St Andrews, one of his father's subsidiary titles, which he holds by courtesy as heir apparent to the Dukedom of Kent.
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.
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.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Edward Windsor, 3rd Baron Windsor
Edward Windsor, 3rd Baron Windsor (1532 – 24 January 1574) was an English peer.
Edward Windsor, Lord Downpatrick
Edward Edmund Maximilian George Windsor, Lord Downpatrick (born 2 December 1988), known professionally as Eddy Downpatrick, is an English fashion designer and former financial analyst.
He is the co-founder and creative director of the British fashion label FIDIR.
Lord Downpatrick is a relative of the British royal family.
As second-in-line to the Dukedom of Kent, he uses one of his grandfather's subsidiary titles, Baron Downpatrick, by courtesy.
He is the most senior member of the royal family to be excluded from the line of succession for being Catholic.
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.
Edward Windsor Richards
Edward Windsor Richards( August 1831 Dowlais, Wales – 12 November 1921), known as Windsor Richards, was a British engineer, and steel maker.

Question: Who is the paternal grandfather of Edward Windsor, Lord Downpatrick?
Answer: Prince Edward, Duke of Kent