Caradog

The charismatic leader of the Silures (known to the Romans as Caractacus). In a series of guerrilla attacks over a period of five or six years the Silures terrified the Roman forces with a wild dervish-like ferocity.

Even when Caradog was defeated, captured and taken to Rome he so impressed the Emperor Claudius with his bravery (and apparently his gift of the gab) that he was pardoned and freed. Notably he chose to live out the rest of his days in Rome rather than returning to south Wales.