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.
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.
Purugupta
Purugupta (Gupta script: "Pu-ra-gu-pta") (reigned 467–473 CE) was an emperor of the Gupta dynasty in northern India.
Purugupta was a son of the Gupta emperor Kumaragupta I by his queen "Anantadevi".
He succeeded his half-brother Skandagupta.
No inscription of Purugupta has been found so far.
He is known from the Bhitari silver-copper seal of his grandson Kumaragupta III and Nalanda clay sealings of his sons Narasimhagupta and Budhagupta and his grandson Kumaragupta III.
From the Saranath Buddha image inscription, it is concluded that he was succeeded by Kumaragupta II.
According to a Nalanda seal of Vishnugupta, Vishnugupta was son of Kumaragupta (II), and grandson of Purugupta.
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.
Budhagupta
Budhagupta( Gupta script:" Bu- dha- gu- pta") was a Gupta emperor and the successor of Kumaragupta II.
He was the son of Purugupta and was succeeded by Narasimhagupta.
Kumaragupta I
Kumaragupta I (Gupta script: "Ku-ma-ra-gu-pta", r. c. 415-455 CE) was an emperor of the Gupta Empire of present-day India and Bangladesh.
A son of the Gupta emperor Chandragupta II and queen Dhruvadevi, he seems to have maintained control of his inherited territory, which extended from Gujarat in the west to Bengal region in the east.
Kumaragupta performed an Ashvamedha sacrifice, which was usually performed to prove imperial sovereignty, although no concrete information is available about his military achievements.
Based on the epigraphic and numismatic evidence, some modern historians have theorized that he may have subdued the Aulikaras of central India and the Traikutakas of western India.
The Bhitari pillar inscription states that his successor Skandagupta restored the fallen fortunes of the Gupta family, which has led to suggestions that during his last years, Kumaragupta suffered reverses, possibly against the Pushyamitras or the Hunas.
However, this cannot be said with certainty, and the situation described in the Bhitari inscription may have been the result of events that happened after his death.
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 Purugupta?
Answer: Chandragupta II