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.
Ariaspes
Ariaspes (died between 360 and 358 BC) was one of the three legitimate sons of Artaxerxes II of Persia.
He was, after the death of his eldest brother Darius, driven to commit suicide by the intrigues of his other brother, Ochus.
He was called "Ariarates" by the Roman historian Justin.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Artaxerxes II of Persia
Artaxerxes II Mnemon (meaning "whose reign is through truth") was the King of Kings (Xšâyathiya Xšâyathiyânâm) of Persia from 404 BC until his death in 358 BC.
He was a son of Darius II and Parysatis.
Greek authors gave him the epithet "Mnemon" (in Old Persian: "abiataka"), meaning "remembering; having a good memory".
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.
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.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
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.

Question: Who is the paternal grandfather of Ariaspes?
Answer: Darius II