Floris de Voogd
Floris de Voogd (c. 1228 – Antwerp, March 26, 1258) "the guardian" of Holland, son of Floris IV, Count of Holland (1210–1234) and Matilda of Brabant (ca.
1202-1267)
.
He reigned temporarily for William II of Holland while the latter was engaged in Germany.
After King William's death in 1256 he was guardian of Floris V, Count of Holland, son of William.
He is sometimes referred to as "Florentius tutor".
He defeated the army of Flanders that had invaded Walcheren in 1253, where he captured Guy and John of Dampierre, both sons of Margaret II, Countess of Flanders and commanders for Flanders.
In 1256 he signed a peace treaty (called the "Treaty of Péronne") with Flanders on the status of Zeeland, reaffirming Flanders' rights west of the Scheldt river.
Flanders was forced to compensate Holland for the damages of the war and only after this Margaretha's sons were freed.
Floris was killed at a tournament in Antwerp, and was buried in Middelburg.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Matilda of Brabant, Countess of Holland
Mathilde (c. 1200 – 22 December 1267) was the fourth child and daughter of Mathilde of Flanders and Henry I, Duke of Brabant.
She married Henry II, Count Palatine of the Rhine (
died 1214) in Aachen in 1212 and later married Floris IV, Count of Holland on 6 December 1224.
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.
Floris De Tier
Floris De Tier( born 20 January 1992) is a Belgian professional racing cyclist, who currently rides for UCI World Team.
He was named in the startlist for the 2017 Vuelta a España.
Bob de Voogd
Bob de Voogd( born 16 September 1988) is a Dutch field hockey player who plays as a midfielder or forward for Belgian club Braxgata and the Dutch national team.
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.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
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

Question: Who is the maternal grandfather of Floris De Voogd?
Answer: Henry I