Nero ( Claudius Caesar Augustus Germanicus , 15 December 37 AD â `` 9 June 68 ) , was the fifth and last Roman Emperor of the Julio-Claudian dynasty . Nero Claudius Caesar Augustus Germanicus ( 15 December 37 â `` 9 June 68 ) , born Lucius Domitius Ahenobarbus , and commonly known as Nero , was Roman Emperor from 54 to 68 . He was the last emperor of the Julio-Claudian dynasty .