Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Afonso, Prince of Portugal (1526)
Afonso, Prince of Portugal was the first son of king John III of Portugal and his queen, Catherine of Austria.
He was the Prince of Portugal but died in the same year he was born, in 1526.
Dulce of Aragon
Dulce of Aragon (or of Barcelona; ; 1160 – 1 September 1198) was Queen consort to King Sancho I of Portugal.
As the eldest daughter of Ramon Berenguer IV, Count of Barcelona and his wife, Queen Petronila of Aragon, she was the sister of the future King Alfonso II of Aragon.
Her bethrothal to "infante" Sancho, son of Afonso Henriques, the first king of Portugal, was celebrated when she was eleven years old and the marriage in 1174.
Not much is known about her life prior to her arrival in Portugal or of the wedding tokens she received upon her marriage.
"A beautiful and excellent lady, quiet and modest, her personality coinciding with her name," Dulce was used as a commodity to seal an alliance which aimed to "strengthen Portugal and to contain the expansionism of Castile and León" and she played the role that was expected of her as a wife and as the mother of numerous children.
At the same time, the marriage compensated for the broken engagement of her husband's sister, Infanta Mafalda with her brother, the future King Alfonso II of Aragon.
With the death of King Afonso Henriques in 1185, her husband ascended the throne and she became Queen consort of Portugal.
In his first will, executed in 1188, her husband gave her the income from Alenquer, of the lands along the banks of the Vouga River, of Santa Maria da Feira and of Oporto.
Dulce did not live long after the birth of her last two daughters, Branca and Berengaria, probably twins, and died in 1198 probably succumbing to the plague and weakened by the successive childbirths.
She was buried in the Monastery of Santa Cruz in Coimbra.
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).
Mafalda of Portugal (born 1153)
Mafalda of Portugal( 1153, Coimbra – after 1162) was a Portuguese" infanta", the fourth legitimate child and third daughter of Afonso Henriques( the first king of Portugal) and his wife Mafalda of Savoy.
In January 1160, her father and Ramón Berenguer IV, Count of Barcelona, negotiated the marriage of Mafalda to Alfonso, future King Alfonso II of Aragon who at that time was three or four years old.
After the death of Ramón Berenguer IV in the summer of 1162, King Ferdinand II of León convinced his widow, Queen Petronilla, to cancel the infante's wedding plans with Mafalda and for Alfonso to marry instead Sancha, daughter Alfonso VII of León and his second wife Queen Richeza of Poland.
This did not compromise the establishment of long- lived good relations between Portugal and Aragon, since Mafalda's younger brother Infante Sancho( future Sancho I of Portugal) would marry Dulce Infanta of Aragon, sister of Alfonso II in 1174.
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.
Mafalda of Portugal
Infanta Mafalda of Portugal (c. 1195 – May 1, 1256 in Rio Tinto, Gondomar) was a Portuguese "infanta" (princess), later Queen consort of Castile for a brief period.
She was the second youngest daughter of King Sancho I of Portugal and Dulce of Aragon.
Married briefly to the ten-year-old Henry I of Castile, she held for a time the title Queen of Castile.
Upon the dissolution of the marriage, she retired to religious life.
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 Mafalda Of Portugal's maternal grandfather?
Answer: Ramon Berenguer IV