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
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Archduchess Maria Isabella of Austria
Archduchess Maria Isabella of Austria, Princess of Tuscany( 21 May 1834 – 14 July 1901), was an Archduchess of Austria and Princess of Tuscany by birth and Countess of Trapani by marriage to her uncle Prince Francis, Count of Trapani.
Maria Isabella was born in Florence, Grand Duchy of Tuscany, as the daughter of Leopold II, Grand Duke of Tuscany and his second wife, Princess Maria Antonia of Bourbon- Two Sicilies.
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.
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.
Ermengarde of Tuscany
Ermengarde of Tuscany (also "ErmengardaHermengarda")
(931/2) was a medieval Italian noblewoman.
She was the daughter of Bertha of Lotharingia and Adalbert II, Margrave of Tuscany.
She was countess of Ivrea through marriage to Adalbert I of Ivrea.
Alongside her half-brother Hugh of Italy Ermengarde was an important opponent of Rudolf II of Burgundy’s rule in Italy.
Adalbert II, Margrave of Tuscany
Adalbert II (c. 875–915), called the Rich, son and successor of Adalbert I, Margrave of Tuscany, and grandson of Boniface II, was much concerned in the troubles of Lombardy, at a time when so many princes were contending for the wreckage of the Carolingian Empire.
Before his father died in 884 or 886, he is accredited the title of "count".
He inherited from his father the titles of Count and Duke of Lucca and Margrave of Tuscany.
Adalbert II died on 10 or 15 September 915 and was buried in the cathedral of Lucca.
His widow Bertha was regent for their young son Guy.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.

Question: Who is Ermengarde Of Tuscany's paternal grandfather?
Answer: Adalbert I, Margrave of Tuscany