An early instance of the process in question is found in an account quoted by O'Donovan from a MS. life of St. Greallán. Maine, he tells us, from whom the sept of Ui Maine took its name and descent, was settled in the territory of Ui Maine by a king of Connacht in the fifth century, dispossessing the "Firbolg" king of that district. (This instance, by the way, further exemplifies the unity still subsisting at that time between the different branches of the Connacht dynasty. Maine, to whom a kingdom in Connacht was thus granted by the king of Connacht, belonged to the Oriel branch of the royal house, a branch which had settled in Ulster early in the preceding century.) When O'Donovan, or the narrative which he quotes, says that the dispossessed king was of the Fir Bolg stock, he uses the term Fir Bolg in its late and wide application. The older possessors of the territory were Picts. Moreover, they were depressed rather than dispossessed, for the descendants of the ancient rulers continued to dwell as subordinate chiefs in their old territory. The family of Ó Mainnín, called Manning in English, is one of those descended from the ancient Pictish rulers of this district, which comprised the southern part of County Roscommon and the south-eastern part of County Galway. Still earlier appropriations of this kind can be traced to the time of Niall of the Nine Hostages, his brothers and sons. The old territory of the Fir Domhnann in northern Connacht became Tír Fiachrach, "Fiachra's Land," being appropriated to Fiachra, brother of Niall, and his descendants. Another branch of Fiachra's sept become possessors of the kingdom of Aidhne, lying between Galway Bay and the old Pictish territory before-mentioned. From Brión or Brian, another brother of Niall, is named Tír Briúin or Brión's Land, extending over parts of the counties Roscommon, Leitrim and Cavan. Brion's sept, the Ui Briúin also obtained a territory in the district of Tuam and another territory called Umhall, around Clew Bay. From a third brother of Niall named Ailill is named Tír Ailello, "Ailill's Land," represented by the barony of Tirerrill in Co. Sligo. In like manner, various territories were appropriated to sons of Niall of the Nine Hostages. The western part of Ulster, which was not brought under conquest by the settlement of the Airghialla, and which is now represented by Donegal county, was partitioned among three sons of Niall, Conall, Énda, and Eoghan, and bore afterwards their names Tír Conaill, "Conall's Land"; Tír Énda, "Enda's Land"; and Tír Eoghain, "Eoghan's Land." It should be noted that the original Tír Eoghain was the peninsula now called Inis Eoghain. The country now called Tyrone was then a part of Oriel. This settlement of the sons of Niall in western Ulster was, however, rather by way of conquest than of grant. No element of conquest enters into the settlements of the other sons of Niall or of the septs descended from them.