History of Gwynedd during the High Middle Ages controlled Ceredigion, taking Llanfihangel, Aberystwyth, and Llanbadarn Fawr. Liberating Llanbadarn, one local chronicler hailed Owain and Cadwaladr both as "bold lions, virtuous, fearless and wise, who guard the churches and their indwellers, defenders of the poor [who] overcome their enemies, affording a safest retreat to all those who seek their protection". The brothers restored the Welsh monks of Llanbadarn, who had been displaced by monks from Gloucester brought there by the Normans who had controlled Ceredigion. By late September 1136 a vast Welsh host gathered in Ceredigion, which included the combined forces of Gwynedd, Deheubarth, and Powys; and met the
Kingdom of Ceredigion a part of southern Ceredigion was in the territory of the Demetae and possibly part of that of the Ordovices. In post-Roman times, however, there is no evidence that the Kingdom of Dyfed included any part of Ceredigion. Modern Ceredigion corresponds almost exactly to the ancient kingdom of Ceredigion. This name is derived from an adjective Cereticianus, itself a derivative of the proper name Cereticus (Cere- dig), known as the son of Cunedda. Though modern Ceredigion corresponds very closely to the old kingdom of Ceredigion, yet it would appear that, in the thirteenth and fourteenth centuries, certain places in Carmarthenshire,