Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
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.
Rustam I
Rustam I , was the ninth ruler of the Bavand dynasty from 867 to 896.
He was the successor and son (or grandson) of Qarin I.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
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.
Sharwin II
Sharwin II (Persian: شروین), was the tenth ruler of the Bavand dynasty from 896 to 930.
In 896, Sharwin's father, Rustam I, was tortured to death by Rafi ibn Harthama, who then divided Rustam's domains in Tabaristan with Zaydid Muhammad ibn Zayd.
Sharwin thus succeeded Rustam I as the head of the Bavand family.
In 900, Sharwin, along with the Karenid ruler Shahriyar ibn Baduspan, aided the Samanids in conquering Tabaristan.
After the successful Samanid conquest, Sharwin's domains were restored to him.
However, in 914, Hasan al-Utrush managed to re-establish Zaydid control over Tabaristan, and forced Sharwin accept the Zaydids as his overlord and pay tribute to them.
Sharwin seems to have later aided Makan ibn Kaki in his campaign to conquer Khorasan from the Samanids in 930, where Sharwin shortly died, and was succeeded by his son Shahriyar II.
Vushmgir, who would become the overlord of Tabaristan in 935, married Sharwin's daughter after the latter's death.
Rustam II
Rustam II, was the twelfth ruler of the Bavand dynasty from 964 to 979.
He was the brother and successor of Shahriyar II.
Rustam was the son of Sharwin II.
In 964, Shahriyar was deposed because of his pro-Ziyarid policies in favor of his pro-Buyid brother Rustam.
Rustam was the first Bavand ruler who embraced Shia Islam.
Shahriyar later tried to reclaim the Bavand throne by invading Tabaristan with a Samanid army in 968, but to no avail.
Rustam died in 979, and was succeeded by his son Al- Marzuban.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
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 Sharwin Ii's paternal grandfather?
Answer: Qarin I