Tenuantius

According to Geoffrey of Monmouth, a king of Britain in the first century BC.

He was the son of King Lud and the brother of Androgeus. Tenuantius succeeded his uncle, Cassibelaunus, to the throne, having previously been the duke of Cornwall. During his reign, Britain was under Roman rule.

Tenuantius was succeeded by his son, Cymbeline (Cunobel).