Cahir and Ceallach The Witcher 3 Wild Hunt / Gwent Card. Cahir Mawr Dyffryn aep Ceallach, or simply Cahir, was an intelligence officer of the Nilfgaardian Empire who hailed from Vicovaro. Ceallach Dyffryn aep Gruffyd was the father of Cahir and a Seneschal at the court of Emperor Emhyr var Emreis and lord of Darn Dyffra. He married Mawr who bore him six children: Aillil, Cahir, Dheran and three daughters.
