Brennius
| Brennius | |
|---|---|
| Statues of Brennius and Belinus at the Church of St John the Baptist, Bristol | |
| King of Northern Britain | |
| Reign | c. 390 BC | 
| Predecessor | Dyfnwal Moelmud | 
| Successor | Belinus | 
| Father | Dyfnwal Moelmud | 
Brennius was a legendary king of Northumbria, Scotland, and the Allobroges, as recounted in Geoffrey of Monmouth's Historia Regum Britanniae (c. 1136). He was the son of Dunvallo Molmutius and brother of Belinus, probably based upon one or both of the historical Brenni. He came to power in 390 BC.