3 12 Proceedings of the Royal Irish Academy. 



Ui Fiachrach "). The Ui Fiachrach, akin to Ui Briuin and Ui Ailella, were 

 the dominant sept in northern Connacht. The Calraige here named are 

 probably the section from whom Glencalry in North Mayo is named. 



lb. a.d. 811 (=812). "Slaughter of the Calraige of Lorg by the Ui 

 Briuin. Slaughter of the Corco Boidhe of Meath by the Ui Maicc Uais." 

 The Ui Maicc Uais were, like Ui Briuin, Ui Neill, Ui Fiachrach, and Ui 

 Ailella, a sept of Dal Cuinn, dominant in Connacht, Meath, and most of 

 Ulster. 



lb. A.D. 815 (= 816). "A battle is won over the Ui Fiachrach of Muiresc 

 by Diarmait [king of Connacht] son of Tomaltach, and Fobren in the country 

 of the Graicraige [=G-recraige) is burned and plundered, iikiplurimi occisi sunt 

 ignobiks." 



This Diarmait died in 833, without having made sufficient provision for 

 his posterity in the manner described by Dubhaltach. How his grand- 

 children repaired the omission is told by another genealogist (BB 102 a 30) : 

 " Uatu, son of Dathlaech, [son of Diarmait], with his sons and brethren 

 [brothers and cousins], headed westward across the Suck ; and the sons of 

 Uatu slew in treachery at an ale-feast in one house [the chief men of] the 

 Corco Eoidhe of Fidh Manach all but a few." And " the sons of Uatu took 

 possession of the lands of the Corco Boidhe" (100 a 20). > The year 900 may 

 be taken as approximate date of this event. Corcu Boidhe was one of the 

 plebeian peoples, Tuath Fhir Buidi, L 24. 



That most of these acts of extermination are located in Connacht 

 probably signifies that the plebeian communities there retained longest the 

 power of resistance. Feebler elsewhere, they suffered perhaps less violent 

 forms of " blighting " and " suppression," on too small a scale to be recorded 

 in chronicles. It is sufficiently clear that there was a continued displace- 

 ment of the inferior population by the dominant Gaelic element during many 

 centuries. 



The process was facilitated by the readiness of, at all events, the less 

 opulent of the patricians to take to husbandry. " Five generations from king 

 to spade," said an old proverb. That the transition might be even more 

 rapid is indicated in the story in the "Fragmentary Annals " told of the 

 grandson of a king of Ireland, himself afterwards king of Ireland, Finnachta 



1 These lands, not defined in Onomasticon Goedelicum beyond that they were west of the Suck, 

 were in the district of Tuam, for the text cited above says that the race of Diarmaid further 

 encroached (102 a 35) on the lands of Cenel nDubain (barony of Kilmaine, co. Mayo) and of 

 Cland Choscraigh (barony of Clare, co. Galway), and on the lands of the Soghain as far as 'Ath 

 Gluinchinn (1. 41), =Bel 'Atha Gluinchinn, " Ballyglunin," where the railway between Athenry 

 and Tuam crosses the Abbert river. Fidh Manach = Coill Fheadha Manach, " Ellamanagb," west 

 of Tuam, near Sbrule. 



