Cannabis October 12, 2016 thcscience_admin Celtic king in Thrace Comontorius was a Celtic king in Thrace who in 278 BC founded the kingdom of Tylis, imposing a tribute on the city of Byzantium. His successor on the throne was Cavarus under whom Tylis was destroyed by the Thracians in 212 BC.[1] References[edit] ^ Polybius IV 46.