High Quality Content by WIKIPEDIA articles! Gaius Octavius Rufus (about 100 BC-59 BC) was an ancestor to the Roman Emperors of the Julio-Claudian dynasty. He was the father of the Emperor Augustus, step-grandfather of the Emperor Tiberius, great-great grandfather of the Emperor Caligula, great-grandfather of the Emperor Claudius, and great-great-great grandfather of the Emperor Nero. He descended from an old, wealthy equestrian branch of the Octavii family. Despite being from a wealthy family, his family was plebeian, rather than patrician. As a novus homo ("new man"), he was not of a senatorial family. His grandfather, Gaius Octavius, fought as a military tribune in Sicily during the Second Punic War. His father Gaius Octavius was a municipal magistrate who lived to an advanced age. He was distantly related to Gnaeus Octavius, the consul of 87 BC who led the opposition to Lucius Cornelius Cinna.