Manchester Memoirs, l^ol. xliv. (iSgg'i, No. "Z. 19 



(Annals of Tigernach,'= Loch Ce, 1036), where the 

 son, Flaithbertach, of a Trostan ( = )3orstcinn) mac Mur- 

 certaigh of the Ui Neil! is mentioned. In 1034 and 1037 

 of the same annals, we find a Sitriiic ( = Sigtryggr) hUi 

 Flandacan of the Ui Mane ; in 1049 (Annals of Ulster), 

 Imhar(= Ivarr)hUa Reice ; in 10S7 (Annals of Tigernach), 

 Sitric ( = Sigtryggr) mac Consleibe hUi Fergail ; in iioi 

 (Annals of Ulster), Sitriuc hUa Maelfabhaill king of 

 Carraic Brachaide, and (Innisfallen Annals) Amlaib mac 

 Echach ; 1103 (Annals of Ulster), Raghnaill Ua Ocain, 

 la\vgiver of Telach-6g. From this time, the beginning of 

 the 1 2th century, Norse names become more and more 

 frequent, Ragnall, Amlaib, Goffiaidh, Magnus and Imar, 

 occurring on nearly every page of the annals. From 11 80 

 to the end of the Annals of Ulster (200 years), the Ui 

 Conchobuir ( = 0'Conor) were never without a Magnus or 

 Mac Magnusa. During the same period, the chief of 

 Muintir Eolais was always a Raghnall or Mac Raghnaill, 

 and Mac Raghnaill became the surname of the family. 

 Among the Ui Raghaillaigh ( = O'Reilly), Goffraidh and 

 Maghnus are frequent ; the female name Raghnailt also 

 occurs. Of the Ui Ruairc( = 0'Rourke),wefind as chieftains 

 AmUib in 1184,1228,1248, 1259 (Four Masters), and 1271 

 (Annals of Ulster) ; Sitriuc in 1165 (Annals of Ulster) ; 

 Maghnus, 13S0 (Four Masters). Among the Ui Cathain 

 (O'Kane), Goffraidh, Maghnus and Raghnall are frequent, 

 the two latter as late as the i6th century. These and one 

 or two other Norse names are also common among the 

 Ui Domnaill ( = 0'Donnell), Ui Gailmrcdaigh, Ui Fergail, 

 Ui hEochadha, and other families. Somhairlidh is found 

 especially among the Mac Domhnaill (M'Donnell). Colla 

 and Eoan or Eoin might of course be either Scandinavan 

 or Gaelic ; in some cases at least, as when they occur 



' Rawl. B. 488, fol. i6b, 2, 1. 22. 



