John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
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.
Fujiwara no Nagara
, also known as Fujiwara no Nagayoshi, was a Japanese statesman, courtier and politician of the early Heian period.
He was the grandfather of Emperor Yōzei.
Henry Bryant (naturalist)
Henry Bryant( May 12, 1820 – February 2, 1867) was an American physician and naturalist.
He was the grandfather of Henry Bryant Bigelow.
Bahram I
Bahram I( also spelled Wahram I or Warahran I;, New Persian:) was the fourth Sasanian King of Kings of Iran from 271 to 274.
He was the eldest son of Shapur I and succeeded his brother Hormizd I, who had reigned for a year.
Bahram
I's reign marked the end of the Sasanian tolerance towards Manichaeism, and in 274, with the support of the influential Zoroastrian priest Kartir, he had Mani imprisoned and executed.
Bahram
I's reign was largely uneventful.
He was succeeded by his son Bahram II.
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.
Shapur I
Shapur I( New Persian:), also known as Shapur the Great, was the second Sasanian King of Kings of Iran.
The dating of his reign is disputed, but it is generally agreed that he ruled from 240 to 270, with his father Ardashir I as co-regent till the death of the latter in 242.
Shapur consolidated and expanded the empire of Ardashir I, waging war against the Roman Empire, whom he seized the cities of Nisibis and Carrhae from, whilst advancing as far as Roman Syria.
He was defeated at the Battle of Resaena in 243, but won the battle of Misiche in 244 and forcing the Romans to sign a favorable peace treaty the following year with the Roman emperor Philip the Arab, which was regarded by the Romans as" a most shameful treaty".
Shapur I's support for Zoroastrianism caused a rise in the position of the clergy, and his religious tolerance accelerated the spread of Manichaeanism and Christianity in Persia.
He is also noted in the Jewish tradition.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.

Question: Who is Bahram I's paternal grandfather?
Answer: Ardashir I