Tiberius (19 August 14CE - 16 March 37CE). Tiberius Claudius Nero was born to Tiberius Claudius Nero (the father) and Livia Drusilla in 42 BCE. Livia later married Octavian (who became Augustus) and thus became stepson to Augustus. He became Tiberius Julius Caesar Augustus upon accession to the throne in 14 CE. He was great-uncle of Caligula, paternal uncle of Claudius, and great-great uncle of Nero. Tiberius was one of Rome's greatest generals.