Tenvantius

Tasciovanus was a historical king of the Catuvellauni tribe before the Roman conquest of Britain.

Tasciovanus is known only through numismatic evidence. He appears to have become king of the Catuvellauni c. 20 BC, ruling from Verlamion (the site of modern-day St Albans). He is believed to have moved the tribal capital to that site from an earlier settlement, near modern-day Wheathampstead. For a brief period c. 15–10 BC he issued coins from Camulodunum (Colchester), apparently supplanting Addedomarus of the Trinovantes. After this he once again issued his coins from Verlamion, now bearing the legend RICON, for *Rigonos, Common Brittonic for "great/divine/legitimate king". Some of his coins bear other abbreviated names such as "DIAS", "SEGO" and "ANDOCO": these are generally considered to be the names of co-rulers or subordinate kings, but may instead be mint-marks. He died c. AD 9, succeeded by his son Cunobeline, who ruled primarily from Camulodunum. Another son, Epaticcus, expanded his territory westwards into the lands of the Atrebates.

A genealogy preserved in the medieval Welsh manuscript Harleian 3859 contains three generations which read "Caratauc map Cinbelin map Teuhant". This is the equivalent of "Caratacus, son of Cunobelinus, son of Tasciovanus", putting the three historical figures in the correct order, although the wrong historical context, the degree of linguistic change suggesting a long period of oral transmission. The remainder of the genealogy contains the names of a sequence of Roman emperors, and two Welsh mythological figures, Guidgen (Gwydion) and Lou (Lleu).

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