Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
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.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
Alfonso Fadrique
Don Alfonso Fadrique  (died 1338) was the eldest and illegitimate son of Frederick II of Sicily.
He served as vicar general of the Duchy of Athens from 1317 to 1330.
He was first proclaimed vicar general by his father in 1317 and sent off to govern Athens on behalf of his younger half-brother Manfred.
He arrived in Piraeus with ten galleys later that year, but Manfred had died and was succeeded by another brother, William II.
In the year of his arrival, Fadrique married Marulla, the daughter of Boniface of Verona, thus allying himself with the chief lord of Euboea.
By this marriage, also, he acquired rights to the castles of Larmena, Karystos, Zetouni, and Gardiki.
Over the next two years, Fadrique warred with the Republic of Venice and stormed the city of Negroponte with Turks after Boniface of Verona died.
In 1318, John II Ducas, the "sebastokrator" of Neopatras, died and Fadrique invaded Thessaly.
He took possession of his castles at Zetouni and Gardiki and conquered Neopatras, Siderokastron, Loidoriki, Domokos, and Pharsalus.
He conquered the palace of the Ducae at Neopatras and took the title of Vicar General of the Duchy of Neopatras.
He built a tower at Neopatras.
In 1330, Alfonso was relieved of his duties as vicar general and replaced by Odo de Novelles.
He was compensated with the Sicilian counties of Malta and Gozo.
He died in 1338 and left five sons, Peter; James, father of Louis Fadrique; William, lord of Livadeia; Boniface, lord of Aigina, Piada and Karystos; John, lord of Salamina and two daughters, Simona, who wed George II Ghisi and Jua.
John Fadrique
John Fadrique( died 1366) was a son of Alfonso Fadrique, vicar general of Athens and Neopatras, and Marulla of Verona.
He is attested as lord of Aegina and Salamis in 1350.
Frederick III of Sicily
Frederick II (or III) (13 December 1272 – 25 June 1337) was the regent (from 1291) and subsequent King of Sicily from 1295 until his death.
He was the third son of Peter III of Aragon and served in the War of the Sicilian Vespers on behalf of his father and brothers, Alfonso ΙΙΙ and James ΙΙ.
He was confirmed as King of Trinacria (another name for the island of Sicily) by the Peace of Caltabellotta in 1302.
His reign saw important constitutional reforms: the "Constitutiones regalesCapitula alia", and "Ordinationes generales".
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
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.
David Aldus
David Aldus( born 18 September 1941) is a Welsh painter.
Much of his work depicts landscape scenes but he is equally known for his maritime scenes having sold one to the President of Malta Dr Ugo Mifsud Bonnici.
The painting" A Tribute to the People of Malta" sold for £ 10,000.
The President of Malta gave the painting to the people of Malta and is in the Museum of Malta in Valletta where it is on display.

Question: Who is the paternal grandfather of Alfonso Fadrique?
Answer: Peter III of Aragon