John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
John Mackay (poet)
John Mackay( 1656–1754), known as( The Blind Piper), was a Scottish Gaelic poet and composer, and the grandfather of William Ross.
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.
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
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.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Zhao Shoushan
Zhao Shoushan( 12 November 1894 – 20 June 1965) was a KMT general and later Chinese Communist Party politician.
He is the grandfather of Zhao Leji.
Augusta Fitzalan-Howard, Duchess of Norfolk
Augusta FitzAlan-Howard, Duchess of Norfolk (
née
The Hon.
Augusta Mary Minna Catherine Lyons)
(1 August 1821 in Torquay, Devon – 22 March 1886 Norfolk House, St James's Square, London), who was commonly known by her middle name, "Minna", was the younger daughter of Edmund Lyons, 1st Baron Lyons by his wife Augusta Louisa (née Rogers).
In 1838/9 Minna was residing with her parents in Athens, whilst her father, Sir Edmund Lyons, was serving as the British Minister to Greece, when Lord Fitzalan, heir to the Duke of Norfolk, became a guest of Sir Edmund Lyons.
Whilst a guest, Lord Fitzalan was disabled by an attack of fever, and subsequently nursed by Augusta, with whom he fell in love.
The two married with on 19 June 1839, and subsequently had eleven children.
Augusta Minna, Duchess Dowager of Norfolk, died on 22 March 1886, and was buried at Fitzalan Chapel in the grounds of Arundel Castle.
Lady Philippa Stewart
Lady Philippa Stewart (13 August 1852 – 1 September 1946) was a British aristocrat.
Born to Henry Fitzalan-Howard, 14th Duke of Norfolk and Hon.
Augusta Mary Minna Catherine Lyons
, she married in 1888 Sir Edward Stewart (1857–1948), and had issue:

Question: Who is the maternal grandfather of Lady Philippa Stewart?
Answer: Edmund Lyons, 1st Baron Lyons