Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
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.
Guglielmo della Scala
Guglielmo della Scala (died 1404) was the son of Cangrande II della Scala.
He assassinated his father in 1359, but was edged out of power by his uncle Cansignorio.
In 1404, together with his two sons Brunoro and Antonio II, he led a revolt against the Milanese.
He was proclaimed Lord of Verona on 17 April, but was expelled from the city by the populace on 28 April.
Francesco da Carrara, Lord of Padua, took over in the city a few days later.
By his marriage to Onesta Mortone, Guglielmo left the two aforementioned sons, who never regained power in Verona, and three younger sons: Bartolomeo
(died 21 March 1453), Fregnano (died 4 December 1443 at Vienna), Nicodemus, and Paul.
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Cangrande II della Scala
Cangrande II della Scala (8 June 1332 – 14 December 1359) was Lord of Verona from 1351 until his death.
In 1351, after the death of his father Mastino II della Scala, he inherited the lordship of Verona and Vicenza, initially (until 1352) under the regency of his uncle Antonio.
In 1350 he married Elizabeth, daughter of Emperor Louis IV of Bavaria and Margaret II, Countess of Hainault.
Cangrande, nicknamed "Can RabbiosoRaging Dog") ruled Verona with iron fist, amassing rich treasures for his illegitimate sons and impoverishing the city.
This caused internal strifes which led the suspicious Cangrande to surround himself with Brandenburg mercenaries.
This did not prevent him being assassinated by his brother Cansignorio, who, with the help of the Carraresi of Padua, succeeded him.
Cangrande had a castle and a fortified bridge built in the town (see Castelvecchio and Castelvecchio Bridge) in order to grant him a safe place and a safe escape route towards Germany in the event of revolt against him in the city.
Among his children were:
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
Bartolomeo II della Scala
Bartolomeo II della Scala( died 12 July 1381) was lord of Verona from 1375 until his death, together with his brother Antonio I della Scala.
The illegitimate son of Cansignorio della Scala, he obtained the power in Verona after the latter's death by assassinating Cansignorio's brother, Paolo Alboino.
He ruled Verona, who was then in bankruptcy and forced to accept the protectorate of Bernabò Visconti.
After a period of moderate reign, Bartolomeo was assassinated by his brother Antonio.
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Prithvipati Shah
Prithvipati Shah( ?–1716) was the king of the Gorkha Kingdom in the Indian subcontinent, present- day Nepal.
He was the grandfather of Nara Bhupal Shah.
Guglielmo della Vigna
Guglielmo della Vigna, O.S.B. (died 1407) was a Roman Catholic prelate who served as Bishop of Todi (1405–1407) and Bishop of Ancona (1386–1405).
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.

Question: Who is the paternal grandfather of Guglielmo Della Scala?
Answer: Mastino II della Scala