Caer Rigor, [319].

Caer Sarrlog, [386].

Caer Sidi, [319], [321], [322], [368].

Caer Vandwy, [257], [320].

Caer Vedwyd, [319].

Caer Wydyr, [320].

Caesar, Julius, [5], [8], [18], [22], [23], [25], [27], [30], [35], [38], [119], [204], [376], [399], [412], [417].

Cairbré, son of Cormac, [206], [222], [315].

Cairn of Octriallach, [110].

Cairpré, son of Ogma, bard of the Tuatha Dé Danann, [58], [82], [83], [87], [139].