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.
John Mackay (poet)
John Mackay( 1656–1754), known as( The Blind Piper), was a Scottish Gaelic poet and composer, and the grandfather of William Ross.
Zhao Shoushan
Zhao Shoushan( 12 November 1894 – 20 June 1965) was a KMT general and later Chinese Communist Party politician.
He is the grandfather of Zhao Leji.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Henry Krause
Henry J." Red" Krause, Jr.( August 28, 1913 – February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.
He played college football at St. Louis University.
He is the grandfather of Jennifer Krause
He is the great grandfather of Payton Hoeing
Chey Chettha II
Chey Chettha II (1576–1628) was a king of Cambodia who reigned from Oudong, about 40 km northwest of modern-day Phnom Penh, from 1618 to 1628.
He was the son of King Srei Soriyopear (r. 1603-1618).
He is noted for moving the royal capital from Srei Sonthor to Oudong, and for his cooperation with the Nguyễn Lords of Vietnam against the Siamese, which led to the Vietnamese annexation of the Mekong Delta, including the city of Prey Nokor—the precursor of modern-day Ho Chi Minh City.
In order to balance the influence of the Siamese forces, which had devastated the previous capital at Lovek during the reign of his father, Chey Chettha approached the Nguyễn lord for help.
To cement the resulting alliance, Chey Chettha was married to Princess Nguyễn Phúc Ngọc Vạn, a daughter of Lord Nguyễn Phúc Nguyên, in 1618.
In return, the king granted the Vietnamese the right to establish settlements in Mô Xoài
(now Bà Rịa), in the region of Prey Nokor—which they colloquially referred to as "Sài Gòn", and which later became Ho Chi Minh City.
In 1623, Chey Chettha allowed the Vietnamese to set up a custom house at Prey Nokor, in order to collect taxes.
This settlement was the start of a major expansion by the Vietnamese beyond the borders established by Lê Thánh Tông in 1471.
The increasing waves of Vietnamese settlers which followed overwhelmed Chey Chettha II's kingdom—weakened as it was due to war with the Siamese—and slowly Vietnamized the Mekong Delta area, claiming it for their own in the 1690s.
The Dutch East India Company established ties with Cambodia in 1620, during Chey Chettha's reign; in 1623, they established an outpost at Kompong Luong, a riverside port near Oudong.
Fred Le Deux
Frederick" Fred" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).
He is the grandfather of Tom Hawkins.
Ramathipadi I
Ramathipadi I (1614 – 1659), also known as Ponhea Chan , Cau Bana Cand or Sultan Ibrahim, was a Cambodian king during the Dark ages of Cambodia.
He reign from 1642 to 1658.
Ramathipadi I was a son of Chey Chettha II.
With the help of Muslim merchants from Malaya, he murdered
Ang
Non I in 1642, and ascended the throne.
He converted to Islam and changed his name to Sultan Ibrahim.
He started to drive out the Dutch East India Company, in 1643, the Cambodian–Dutch War broke out.
However, most Cambodians were Buddhist.
Nguyễn Phúc Ngọc Vạn, a consort of his father, wanted to overthrow him, and sought help from Vietnamese Nguyễn lord.
In 1658, a Vietnamese army invaded Cambodia, deposed him, and imprisoned him in Quảng Bình.
He died in the next year, probably killed by Vietnamese or died of disease.
Chan's three sons took refuge in Siam.
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 Ramathipadi I's paternal grandfather?
Answer: Srei Soriyopear