Tiberius Claudius Caesar Augustus Germanicus [b] (/ ˈ k l ɔː d i ə s / KLAW-dee-əs, Classical Latin: [tɪˈbɛri.ʊs ˈkɫau̯di.ʊs ˈkae̯sar au̯ˈɡʊstʊs ɡɛrˈmaːnɪkʊs]; 1 August 10 BC – 13 October AD 54), or Claudius, was a Roman emperor, ruling from AD 41 to 54.