WEBNero, in full Nero Claudius Caesar Augustus (or Drusus) Germanicus orig. Lucius Domitius Ahenobarbus, (born Dec. 15, ad 37, Antium, Latium—died June 9, 68, Rome), Roman emperor (54–68). He was adopted by Claudius when the emperor married Nero’s mother, Agrippina the Younger, and took the throne after Claudius died.