Cunobeline or Cunobelin (Common Brittonic: *Cunobelinos, "Dog-Strong"), also known by his name's Latin form Cunobelinus, was a king in pre-Roman Britain from about AD 9 to about AD 40.[1] He is mentioned in passing by the classical historians Suetonius and Dio Cassius, and many coins bearing his inscription have been found. He controlled a substantial portion of south-eastern Britain, including the territories of the Catuvellauni and the Trinovantes, and is called "King of the Britons" (Britannorum rex) by Suetonius.[2] Cunobeline may have been a client king of Rome, based on the images and legends appearing on his coins.[3][4] Cunobeline appears in British legend as Cynfelyn (Welsh), Kymbelinus (medieval Latin) or Cymbeline, as in the play by William Shakespeare.