Gnaeus Domitius Ahenobarbus (11 December ca. 2 BC – January AD 41) was a member of the imperial Julio-Claudian dynasty of Ancient Rome. Domitius was the son of Antonia Major (daughter of Emperor Augustus' sister Octavia Minor and her second husband Mark Antony). He married Agrippina the Younger and became the father of the Emperor Nero. Biography Early life Domitius' birthdate is uncertain; some interpretations are that he was born around 17 BC while other sources argue he was born a generation later in 2 BC. Domitius was the son of Antonia Major, the niece of Emperor Augustus, and her husband Lucius Domitius Ahenobarbus. He had at least two sisters Domitia and Domitia Lepida, and possibly an older brother named Lucius Domitius Ahenobarbus, whom ancient sources confuse his early career and birthdate with. Career Describing him as "despicable and dishonest", Suetonius says that as a young man, Domitius was serving on the staff of his second cousin Gaius Caesar in the east, in AD 2. Domitius killed his freedman for refusing to drink as much as he was told. The reported reason was that the freedman did not get as drunk as Domitius did. On the Appian Way, Domitius was reported to have deliberately run over a child who was playing with his doll. At the Roman Forum, Domitius reportedly pulled out an eye of an equestrian because the equestrian openly criticized him. Although some historians such as Ronald Syme have argued that the Domitius who served with Gaius Caesar may have been an older brother of his and not Nero's father. Gaius Stern claims that the Eastern expedition is actually that of Germanicus in AD 17–19, if one assumes his birth to be in 2 BC and still interpret the violent actions to belong to Nero's father. Domitius cheated on bankers for purchases he made. When he was praetor, Domitius would swindle the prize money of victorious charioteers. Managers would complain, but Domitius decreed that future prizes would be paid on the spot. Domitius was also considered a serious womanizer. The Emperor Tiberius charged him with treason, adultery and incest with his sister and also with adultery with another noblewoman, but the ascension of Caligula saved him. Domitius married his first cousin once removed Agrippina the Younger, Caligula's sister, after her thirteenth birthday in 28. He was far older than her at the time. Tiberius arranged and ordered the