was of the Machtheni people. As evidenced by kings such as Mac Cairthinn mac Coelboth (died 446) and Ailill Molt (died c. 482), even by the 5th century the gens was giving way to kinship all over Ireland, as both men were identified as of the Uí Enechglaiss and Uí Fiachrach dynasties, not of tribes. By 700, moccu had been entirely replaced by mac and hua (later Mac and Ó). During the mid-8th century, what is now County Clare was absorbed into Thomond by the Déisi Tuisceart. It has remained a part of the province of Munster ever since. The name Connacht arose from the most successful of these early dynasties, The Connachta. By 1050, they had extended their rule from Rathcroghan in north County Roscommon to large areas of what are now County Galway, County Mayo, County Sligo, and County Leitrim. The dynastic term was from then on applied to the overall geographic area containing those counties, and has remained so ever since. Kingdom of Connacht The most successful sept of the Connachta were the Ó Conchobair of Síol Muireadaigh. They derived their surname from Conchobar mac Taidg Mór (c. 800 – 882), from whom all subsequent Ó Conchobair Kings of Connacht descended. Conchobar was a nominal vassal of Máel Sechnaill mac Máele Ruanaid, High King of Ireland (died 862). He married Máel Sechnaill's daughter, Ailbe, and had sons Áed mac Conchobair (died 888), Tadg mac Conchobair (died 900) and Cathal mac Conchobair (died 925), all of whom subsequently reigned. Conchobar and his sons' descendants expanded the power of the Síol Muiredhaigh south into Uí Maine, west into Iar Connacht, and north into Uí Fiachrach Muaidhe and Bréifne. By the reign of Áed in Gai Bernaig (1046–1067), Connacht's kings ruled much what is now the province. Yet the Ó Conchobair's contended for control with their cousins, the Ua Ruairc of Uí Briúin Bréifne. Four Ua Ruairc's achieved rule of the kingdom – Fergal Ua Ruairc (956–967), Art Uallach Ua Ruairc (1030–1046), Áed Ua Ruairc (1067–1087), and Domnall Ua Ruairc (1098–1102). In addition, the usurper Flaithbertaigh Ua Flaithbertaigh gained the kingship in 1092 by the expedient of blinding King Ruaidrí na Saide Buide. After 1102 the Ua Ruairc's and Ua Flaithbertaigh's were suborned and confined to their own kingdoms of Bréifne and Iar Connacht. From then until the death of the last king in 1474, the kingship was held exclusively