Caradocus (Karadawc)

In Geoffrey of Monmouth's pseudo‑historical narrative Caradocus (Latinized from Middle Welsh Karadawc) appears as a leading Cornish magnate under King Octavius who advises that Octavius' daughter be married to Magnus Maximus to bind Britain and Rome, sends his son Mauricius to Rome as envoy, and later supports Maximus' rule. Geoffrey calls him dux or rex of Cornwall in different passages; he dies within the first five years of Maximus' reign and his brother Dionotus is then described as governing in Maximus' absence. Welsh Triads and later antiquarian writings also preserve figures named Caradoc/Caradawg that may have been conflated with or served as sources for Geoffrey's Caradocus, producing overlapping legendary traditions.

The provided sources give no physical description of Caradocus: no details of height, dress, or features are recorded in Geoffrey's account or the summary traditions cited. He is attested solely by his political role and actions. Later literary and antiquarian treatments reuse the name in various contexts (for example Caradawg Vreichvras in the Welsh Triads) but the supplied material does not record any established iconography or consistent visual representation.

No supernatural powers are attributed to Caradocus in the cited sources; his capacities are political and social: proposing a dynastic marriage to unite Britain and Rome, dispatching his son Mauricius as envoy to Maximus, intervening to restore peace when Conan Meriadoc nearly attacked Maximus on landing, rallying to support Maximus' rule, and occupying rulership of Cornwall (styled dux or rex) until his death within five years of Maximus' accession. These actions are presented as influence, counsel, and leadership rather than magical abilities.