John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Juan de Aragón
Juan de Aragón was a Roman Catholic prelate who served as Archbishop of Zaragoza( 1458 – 1475).
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.
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.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Juan de la Torre y Castro
Juan de la Torre y Castro of Juan de la Torres y Castro (1607 – December 1662) was a Roman Catholic prelate who served as Bishop of Nicaragua (1661–1662).
Juan de Dios Rawson
Juan de Dios Rawson( 1833- 1902) was an Argentine military man, who took part in the Argentine Civil War, War of the Triple Alliance against Paraguay, and the Conquest of the Desert against the Aboriginal Tribes.
He was born in San Juan, the son of Amán Rawson, born in Massachusetts, and Mercedes Martínez, belonging to a Creole family of the city.
He was married to Elizarda Guiñazú Encinas, daughter of Juan Antonio Guiñazú and Trinidad Encinas.
Juan de Dios Rawson was half brother of Guillermo Rawson, Minister of the Interior during the presidency of Bartolomé Mitre, and the grandfather of Arturo Rawson, interim president of Argentina in 1943.
John of Aragon (patriarch)
John of Aragon (1304–1334, Pobo, Saragossa) was a prince of Aragon.
He was the son of James II of Aragon and his second wife Blanche of Anjou.
He was archbishop of Toledo from 1319 until 1328.
He became archbishop of Tarragona in 1327 and Latin Patriarch of Alexandria in 1328, holding both posts until his death.
James II of Aragon
James II (10 April 1267 – 2 or 5 November 1327), called the Just, was the King of Aragon and Valencia and Count of Barcelona from 1291 to 1327.
He was also the King of Sicily (as James I) from 1285 to 1295 and the King of Majorca from 1291 to 1298.
From 1297 he was nominally the King of Sardinia and Corsica, but he only acquired the island of Sardinia by conquest in 1324.
His full title for the last three decades of his reign was "James, by the grace of God, king of Aragon, Valencia, Sardinia and Corsica, and count of Barcelona"
(Latin: "Iacobus Dei gracia rex Aragonum, Valencie, Sardinie, et Corsice
ac comes Barchinone").
Born at Valencia, James was the second son of Peter III of Aragon and Constance of Sicily.
He succeeded his father in Sicily in 1285 and his elder brother Alfonso III in Aragon and the other Spanish territories, including Majorca, in 1291.
He was forced to cede Sicily to the papacy in 1295, after which it was seized by his younger brother, Frederick III, in 1296.
In 1298 he returned Majorca to the deposed king of Majorca, a different James II, having received rights to Sardinia and Corsica from Pope Boniface VIII.
On 20 January 1296, Boniface issued the bull "Redemptor mundi" granting James the titles of Standard-bearer, Captain General and Admiral of the Roman church.

Question: Who is John Of Aragon (Patriarch)'s paternal grandfather?
Answer: Peter III of Aragon