Cadmus, son of Agenor, king of Phoenicia, and of Telephassa, and brother of Europa, who, seeking his sister, carried off by Jupiter, had strange adventures—sowing in the ground teeth of a dragon he had killed, which sprang up armed men who slew each other, all but five, who helped Cadmus to found the city of Thebes,
Caduceus, Mercury's staff,
Cadwallo, King of Venedotia (North Wales),
Caerleon, traditional seat of Arthur's court,
Caesar, Julius, Roman lawyer, general, statesman and author, conquered and consolidated Roman territory, making possible the Empire,
Caicus, a Greek river,
Cairns, Druidical store piles,
Calais, French town facing England,
Calchas, wisest soothsayer among the Greeks at Troy,
Caliburn, a sword of Arthur,