Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
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.
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.
Robert, King of Naples
Robert of Anjou , known as Robert the Wise (1276 – 20 January 1343), was King of Naples, titular King of Jerusalem and Count of Provence and Forcalquier from 1309 to 1343, the central figure of Italian politics of his time.
He was the third son of King Charles II of Naples and Maria of Hungary, and during his father's lifetime he was styled Duke of Calabria (1296–1309).
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
Charles d'Artois
Charles d'Artois (1300 – September 1346) was a Neapolitan nobleman and court official.
Charles was born in 1300 as the illegitimate son of Robert, heir apparent to the throne of Naples.
His mother was Cantelma Cantelmo, lady of the bedchamber to Robert's wife, Sancia of Majorca.
Robert became King of Naples in 1309, and Charles was raised at his court as a royal bastard.
In 1317, he became chamberlain to his father and was given rule over Pennaluce.
The following year, Charles was made guardian of the Castle of Santa Maria del Monte.
He was given further lands in 1322, namely the barony of Roccaromana.
On his deathbed in 1343, King Robert named Charles and Queen Sancia as guardians of Robert's granddaughters (Charles's nieces) Joanna and Maria.
On King Robert's death, the crown passed to his granddaughter and Charles's niece,
Queen Joanna I. She named her uncle Chancellor of the Realm and her personal counselor on 20 May 1345.
On that occasion, he also became Count of Sant'Agata
de' Goti.
Charles was one of the principal plotters against his niece's husband, King Andrew.
When Andrew was murdered in September 1345, Charles was sentenced to death.
He fled the court along with his eldest son, Bertrand, and took refuge in his county.
Catherine II, Latin Empress, and her son Louis of Taranto captured Charles, who died of stress or poison in Melfi on 31 August or in early September 1346.
He was buried in the Church of Saint Francis in Sant'Agata de
' Goti.
By his wife, Marianna Scotto, Charles had four sons: Bertrand (assassin of King Andrew), Louis (Charles's successor as Count of Sant'Agata de' Goti), Carlotto and Rostaino.
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.
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.

Question: Who is the paternal grandfather of Charles D'Artois?
Answer: Charles II of Naples