Source : WordNet®

Claudius I
     n : Roman Emperor after his nephew Caligula was murdered;
         consolidated the Empire and conquered southern Britain;
         was poisoned by his fourth wife Agrippina after her son
         Nero was named as Claudius' heir (10 BC to AD 54) [syn: {Claudius},
          {Tiberius Claudius Drusus Nero Germanicus}]