Clothru: sister of Medb: Medb slew her while her son, Firbaide, was still unborn

Cluain Cain: now Clonkeen, in the west of County Louth

Cluain Carpat: a meadow at the river Cruinn in Cualnge

Cluain maccuNois: Clonmacnoise, on the Shannon, about nine miles below Athlone

Cnoc Aine: Knockany, a hill and plain in the County Limerick

Cnogba: Knowth, on the Boyne, near Drogheda, a couple of miles east of Slane, in the County Meath

Colbtha: the mouth of the Boyne at Drogheda, or some place near the Boyne

Collamair: between Gormanstown and Turvey, in the County Dublin

Coltain: south of Cruachan Ai

Conall: probably Tyrconnel, in the County Donegal

Conall Cernach: one of the chief warriors of Ulster: foster-brother of Cuchulain and next to him in point of prowess

Conalle Murthemni: a level plain in the County Louth, extending from the Cooley Mountains, or Carlingford, to the Boyne

Conchobar: son of Cathba the druid, and of Ness, and foster-son of Fachtna Fatach (variously p.r.o.nounced _Cruhoor_, _Connahoor_)

Conlaech: son of Cuchulain and Aife

Corc.u.mruad: the present barony of Corcomroe, in the County Clare

Cormac Conlongas: King Conchobar's eldest son; called "the Intelligent Exile," because of the part he took as surety for the safety of the exiled sons of Usnech

Coronn: the barony of Corran, in the County Sligo

Corp Cliath: a place in Ulster

Craeb ruad: ordinarily Englished "Red Branch"; better, perhaps, "n.o.bles'

Branch:" King Conchobar's banqueting-hall, at Emain Macha

Crannach: at Faughart, north-east of Fid Mor

Cromma: a river flowing into the Boyne not far from Slane

Cronn hi Cualngi: probably a hill or river of this name near Cualnge

Cruachan Ai: the ancient seat and royal burial-place of the kings of Connacht, ten miles north-east of the modern Rathcroghan, near Belanagare, in the County Roscommon (p.r.o.nounced _Croohan_)

Cruinn: a river in Cualnge: probably the stream now called the Piedmont River, emptying into Dundalk Bay

Cruthnech: the land of the Irish Picts; the northern part of the County Down and the southern part of the County Antrim

Cu, Cucuc, Cuacain, Cucucan, Cucucuc: diminutives of the name Cuchulain

Cualnge: Cooley, a mountainous district between Dundalk Bay and Drogheda, in the barony of Lower Dundalk, in the County Louth. It originally extended to the County Down, and the name is now applied to the southern side of the Carlingford Mountains (p.r.o.nounced _Cooln'ya_)

Cualu: a district in the County Wicklow

Cuchulain: the usual name of the hero Setanta; son of the G.o.d Lug and of Dechtire, and foster-son of Sualtaim (p.r.o.nounced _Cuhoolin_)

Cuib: on the road to Midluachair

Cuilenn: the Cully Waters flowing southward from County Armagh into County Louth

Cul Siblinne: now Kells in East Meath

Cul Silinne: Kilcooley, a few miles to the south-east of Cruachan, in the County Roscommon

Culenn: a river in Conalle Murthemni

Cuillenn: _see_ Ard Cuillenn

Cuillenn Cinn Duni: a hill in Ulster

Cuince: a mountain in Cualnge

c.u.mung: a river in Conalle Murthemni

Curoi: son of Dare and king of South Munster

Cuscraid Menn Macha: son of Conchobar

Dall Scena: a place north of Aile

Dalraida: now "the Route," a territory north of Slieve Mish, in the north of the County Antrim

Dare: chieftain of the cantred of Cualnge and owner of the Brown Bull of Cualnge

Dechtire: sister of King Conchobar and mother of Cuchulain

Delga: _see_ Dun Delga

Delga Murthemni: Dundalk

Delinn: a place or river near Kells between Duelt and Selaig, on Medb's march from Cruachan into Ulster

Delt: a place north of Drong, on Medb's march from Cruachan into Ulster

Delt: a river in Conalle Murthemni