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.
Claudia Octavia
Claudia Octavia (Classical Latin:) (late AD 39 or early AD 40 – 8 June AD 62) was an empress of Rome.
She was the daughter of the Emperor Claudius and stepsister and first wife of Emperor Nero.
Tiberius Claudius Nero (praetor 42 BC)
Tiberius Claudius Nero, often known as Tiberius Nero and Nero( 85–33 BC) was a politician who lived in the last century of the Roman Republic.
He was the first husband of Livia, but was forced to divorce her in 38 BC so that she could marry the future emperor Augustus.
Nero was the father of the second Roman emperor Tiberius,( who became the stepson of the emperor Augustus and was adopted by Augustus as his heir), and Roman general Nero Claudius Drusus.
He was also the paternal grandfather of Emperor Claudius, General Germanicus, and Consul Drusus Julius Caesar, paternal great- grandfather of Emperor Caligula and Empresses Agrippina the Younger and Claudia Octavia and maternal great- great- grandfather of Emperor Nero.
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.
Claudius
Claudius (1 August 10 BC – 13 October AD 54) was a Roman emperor from AD 41 to 54.
Born to Drusus and Antonia Minor at Lugdunum in Roman Gaul, where his father was stationed as a military legate, he was the first Roman emperor to be born outside Italy.
Nonetheless, Claudius was an Italic of Sabine origins and a member of the Julio-Claudian dynasty.
Because he was afflicted with a limp and slight deafness due to sickness at a young age, his family ostracized him and excluded him from public office until his consulship, shared with his nephew Caligula in 37.
Claudius's infirmity probably saved him from the fate of many other nobles during the purges of Tiberius' and Caligula's reigns; potential enemies did not see him as a serious threat.
His survival led to his being declared emperor by the Praetorian Guard after Caligula's assassination, at which point he was the last man of his family.
Despite his lack of experience, Claudius proved to be an able and efficient administrator.
He expanded the imperial bureaucracy to include freedmen, and helped to restore the empire's finances after the excess of Caligula's reign.
He was also an ambitious builder, constructing many new roads, aqueducts, and canals across the Empire.
During his reign the Empire started its successful conquest of Britain.
Having a personal interest in law, he presided at public trials, and issued up to twenty edicts a day.
He was seen as vulnerable throughout his reign, particularly by elements of the nobility.
Claudius was constantly forced to shore up his position; this resulted in the deaths of many senators.
These events damaged his reputation among the ancient writers, though more recent historians have revised this opinion.
Many authors contend that he was murdered by his own wife.
After his death in 54 (at the age of 63), his grand-nephew, step-son, and adopted son Nero succeeded him as emperor.
His 13-year reign (slightly longer than Nero's) would not be surpassed by any successors until that of Domitian, who reigned for 15 years.
He was a descendant of the Octavii Rufi (through Gaius Octavius), Julii Caesares (through Julia Minor and Julia Antonia), and the Claudii Nerones (through Nero Claudius Drusus).
He was a step-grandson (through his father Drusus) and great-nephew (through his mother Antonia Minor) of Augustus.
He was a nephew of Tiberius through his father, Tiberius's brother.
Through his brother Germanicus, Claudius was an uncle of Caligula and a great uncle of Nero.
Through his mother Antonia Minor he was a grandson of Mark Antony and Octavia Minor.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
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.

Question: Who is Claudia Octavia's paternal grandfather?
Answer: Nero Claudius Drusus