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.
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.
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.
Amda Iyasus
Amda Iyasus ("ʿāmda iyasusPillar of Jesus,") was Emperor ("nəgusä nägäst")
(throne name Badel Nan በድል ናኝ "badil nāñ"; 1433–1434) of Abyssinia, and a member of the Solomonic dynasty.
He was the younger son of Takla Maryam.
E. A. Wallis Budge notes that Amda Iyasus ruled for eight months, and left no children.
The royal chronicles also do not relay his deeds during his brief tenure atop the throne.
Al-Maqrizi was reportedly puzzled by the quick turnover in Kings.
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.
Takla Maryam
Takla Maryam ("Plant of Mary," , throne name) was Emperor  (1430–1433) of Ethiopia.
A member of the Solomonic dynasty, he was the second son of Yeshaq I.
Manoel de Almeida remarks that the descendants of Takla Maryam had been taken from Amba Geshen by Emperor Zara Yaqob and "exiled to hot lands where there are many diseases"; when his son Emperor Baeda Maryam I, early in his reign, attempted to redress this injury by recalling them from exile, they slew his messengers.
Although Baeda Maryam I promptly took punitive measures (which included decapitating 80 of their members), in de Almeida's day they were "still rigorously watched".
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.
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).

Question: Who is the paternal grandfather of Amda Iyasus?