Ossory, Desmond and Connacht. Domhnall even acknowledged Henry II as Lord of Ireland at Cashel in 1171, but a mere two years later when Plantagenet tried to grant Thomond to Philip de Braose this situation was overturned. The Dál gCais defeated a Norman army at the Battle of Thurles in 1174, where over 1,700 Normans were killed. The following year when Raymond le Gros captured Limerick through a naval invasion, Domhnall re-took it and burned it rather than have it in foreign hands. The twenty years after that were more secure for the Gaels of Thomond. After the death of Domhnall Mór a period of destructive feuding among his offspring caused a great territorial decline in Thomond. The brothers Muircheartach Finn Ó Briain and Conchobhar Ruadh Ó Briain fought with each other, seeing Muircheartach's reign interrupted between 1198 and 1203. Muirchertach himself was blinded by the Normans in 1208 and was soon forced into abdication due to no longer being righdamhna. Donnchadh Cairprech Ó Briain had to deal with dissent from the Mac Con Mara and Ó Coinn against his rule, so brought in the Laigin's Mac Gormáin as his standard bearers. Donnchadh also enlisted the support of the de Burgh and other Normans in this fight, which came at a costly price; Limerick and lands surrounding it in what would later become County Limerick and County Tipperary. Under pressure from the Butlers, Thomond was now not too different from what would become County Clare, protected by the River Shannon. Donnchadh moved his capital to Clonroad. The Normans' advance continued during the reign of Conchobhar na Suidaine Ó Briain, as Henry III "granted" lands to Robert de Muscregos and John Fitzgeoffrey. Of the two de Muscregos was most active, constructing Clare Castle and Bunratty Castle with a colony. The precedent for Thomond was very dangerous as, should much more land have been taken, the realm would have no longer existed. Conchobhar and his fiery son Tadhg Cael Uisce Ó Briain took up arms and slaughtered many of the Norman settler-colonists in 1257. The following year, the Gaelic chiefs from all over Ireland had resolved to form an anti-Norman pact and met at Cael Uisce, near Lough Erne to discuss terms. They planned to resurrect the High Kingship of Ireland, with most supporting Brian Ó Néill as the choice. Tadhg was proud and stubborn, declaring his father should be High King;