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.
Margaret, Countess of Vertus
Margaret, Countess of Vertus (French: "Marguerite d'Orléans"; 4 December 1406 – 1466), was a French vassal, Countess of Vertus and Etampes 1420–1466.
She was the daughter of Louis I, Duke of Orléans, and Valentina Visconti.
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
Isabella, Countess of Vertus
Isabella of France (1 October 1348 – 11 September 1373) was a French princess and member of the House of Valois, as well as the wife of Gian Galeazzo Visconti, who after her death became Duke of Milan.
Born in Bois de Vincennes, Isabella was the youngest daughter of King John II of France by his first wife, Bonne of Bohemia.
Her maternal uncle Count Amadeus VI of Savoy arranged her marriage with Gian Galeazzo Visconti.
As her dowry, Isabella received the county of Sommières, exchanged later for the county of Vertus.
On 8 October 1360, Isabella and Gian Galeazzo were married in Milan, and six months later, in April 1361, she was declared sovereign Countess of Vertus.
The couple had four children:
Isabella died in childbirth in Pavia in 1373.
Anne Yelverton
Anne Yelverton( 1628–1698) was Countess of Manchester and Countess of Halifax.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Louis I, Duke of Orléans
Louis I of Orléans (13 March 1372 – 23 November 1407) was Duke of Orléans from 1392 to his death.
He was also, Duke of Touraine (1386–1392), Count of Valois (1386?–1406)
Blois (1397–1407), Angoulême (1404–1407), Périgord (1400–1407) and Soissons (1404–07).
Louis was the second son of King Charles V of France and Joanna of Bourbon and was the younger brother of Charles VI.
In 1498, his heirs male inherited the French throne after the extinction of the Valois main line.
Valentina Visconti, Duchess of Orléans
Valentina Visconti (1371 – 4 December 1408) was a Sovereign Countess of Vertus, and Duchess consort of Orléans as the wife of Louis de Valois, Duke of Orléans, the younger brother of King Charles VI of France.
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.

Question: Who is the paternal grandfather of Margaret, Countess Of Vertus?
Answer: Charles V