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.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Anna Tyszkiewicz
Anna Tyszkiewicz (1776–1867) was a Polish noblewoman and diarist.
Anna was the daughter of Ludwik Tyszkiewicz and Konstancja Poniatowska, and married Aleksander Stanisław Potocki on 15 May 1805 in Wilno, divorced him in 1821 and remarried Stanisław Dunin-Wąsowicz.
Her diary was written between the years 1794 and 1820, and are regarded as an important historical source.
It was published in 1897-98.
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
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
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.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
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.
Konstancja Poniatowska
Princess Konstancja Poniatowska (1759–1830) was a Polish noblewoman, niece of king Stanisław August Poniatowski.
Konstancja was the daughter of Kazimierz Poniatowski and Apolonia Ustrzycka, and married Ludwik Skumin Tyszkiewicz on April 4, 1775 in Warsaw.
She was one of the closest friends of the French Minister of Foreign Affairs, Charles Maurice de Talleyrand-Périgord.
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.

Question: Who is the maternal grandfather of Anna Tyszkiewicz?
Answer: Kazimierz Poniatowski