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.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
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.
Dara Shikoh
Dara Shikoh, also known as Dara Shukoh ,
(20 March 1615 – 30 August 1659) was the eldest son and heir-apparent of the Mughal emperor Shah Jahan.
Dara was designated with the title "Padshahzada-i-Buzurg MartabaPrince of High Rank") and was favoured as a successor by his father and his older sister, Princess Jahanara Begum.
In the war of succession which ensued after Shah Jahan's illness in 1657, Dara was defeated by his younger brother Prince Muhiuddin (later, the Emperor Aurangzeb).
He was executed in 1659 on Aurangzeb's orders in a bitter struggle for the imperial throne.
Dara was a liberal-minded unorthodox Muslim as opposed to the orthodox Aurangzeb.
A great patron of the arts, he was also more inclined towards philosophy and mysticism rather than military pursuits.
The course of the history of the Indian subcontinent, had Dara Shikoh prevailed over Aurangzeb, has been a matter of some conjecture among historians.
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.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Sipihr Shikoh
Sipihr Shikoh (13 October 1644 – 2 or 3 July 1708) also known as Sipihr Shukoh, was a Mughal prince as the fourth son of Crown Prince Dara Shikoh and his consort Nadira Banu Begum.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
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.

Question: Who is Sipihr Shikoh's paternal grandfather?
Answer: Shah Jahan