Nero Claudius Drusus, later Drusus Julius Caesar (his adoptive name) (13 BC-September 14, 23), was the only child of Roman Emperor Tiberius and his first wife, Vipsania Agrippina. He was born in 7 October 15 BC or 14 BC with the name Nero Claudius Drusus, and is also known to historians as Drusus II and Drusus Minor. Drusus was named after his paternal uncle the general Nero Claudius Drusus (who is sometimes called Nero Drusus, Drusus I, Drusus Major, or Drusus the Elder), who was Tiberius' younger brother. He was born and raised in Rome. Drusus was the first grandchild of statesman Marcus Vipsanius Agrippa and his first wife Caecilia Attica. Despite his violent temper, Drusus showed promise with both military and politics. In 13, he was made a permanent member of the Senate committee Augustus had founded to draw up the Senate's daily business. However, because Drusus was only related to the Claudian side of the family, rather than both the Julians and Claudians, Augustus forced Tiberius to adopt Germanicus, who was married to Augustus's granddaughter, as his son and heir, removing Drusus from the succession.