was born Claudius Nero Caesar in Rome on November 16, 42BC. Four years later his mother divorced his father and married the triumvir Octavian, later Emperor Augustus, who had carefully educated. In 20BC commanded an expedition to Armenia, and he subsequently helped subdue the Rhaetians and fought against the Pannonians (12-9BC). In 11BC , at his stepfather's command, dissolved his happy marriage to Vipsania Agrippina (died AD20), daughter of the Roman general Marcus Vipsanius Agrippa, and married Augustus's daughter Julia, who was Agrippa' ....