Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
Bubares
Bubares (died after 480 BC) was a Persian nobleman and engineer in the service of the Achaemenid Empire of the 5th century BC.
He was one of the sons of Megabazus, and a second-degree cousin of Xerxes I.
Amyntas II (son of Bubares)
Amyntas II was the son of the Persian official Bubares by his Macedonian wife Gygaea.
He was named after his maternal grandfather, Amyntas I of Macedon, who ruled Macedon as a Persian subject since 512/511 BC.
Later, king Xerxes I (r. 486-465 BC) gave him the Carian city of Alabanda.
Amyntas was possibly the direct successor of the tyrant Aridolis.
Gygaea of Macedon
Gygaea was a daughter of Amyntas I and sister of Alexander I of Macedon.
She was given away in marriage by her brother to the Persian General Bubares.
Herodotus also mentions a son of Bubares and Gygaea, called Amyntas, who was later given the city Alabanda in Caria by Xerxes I( r. 486-465).
There is also another Gygaea, second wife of Amyntas III of Macedon, whose son Menelaus was put to death by his half- brother Philip II in 347 BC.
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.
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.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
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 Amyntas Ii (Son Of Bubares)?
Answer: Megabazus