Clau·di·us I 
(klôdē-əs) Full name Tiberius Claudius Drusus Nero Germanicus. 10 BC-AD 54.
(klôdē-əs) Full name Tiberius Claudius Drusus Nero Germanicus. 10 BC-AD 54. Emperor of Rome (AD 41-54) who became ruler after Caligula was murdered. He was poisoned by his wife, Agrippina, after her son Nero was named as heir.