The Territory of Aidhne Aidhne was the territory of the tuath, or tribe, of Uí Fiachrach Aidhne. The O'Heynes were a chief family of the Uí Fiachrach Aidhne and the clan of Cineal Guaire, or "Kin of Guaire". Other septs included the O'Shaughnessys, O'Clearys, Killikellys, Cahills, O’Cathains, and other names.   The Uí Fiachrach Aidhne lived in the territory of Aidhne, in the southern part of what is now County Galway, in Southern Connaught (Deiscirt Connacht), comprising the country from Gort to Oranmore, whose boundaries were co-extensive with the diocese of Kilmacduagh and included all of the barony of Kiltartan and parts of the baronies of Dunkellin and Loughrea. The topographical poem The Land of Glorious Aidhne describes the chiefs of Aidhne. The territory of Aidhne was the scene of many of Ireland's greatest ancient legends: Queen Maeve (Medb) of the Cattle Raid of Cooley (Táin Bó Cúailnge) ruled there; Fin McCool (Finn Mac Cumhail) defeated Uinche at Kinvara (Ceann Mara) and pursued Diarmid and Graine through the woods of Doire Dhebhoth, later known as Chevy's Chase. There were also many legends about Guaire Aidhne, 7th century King of Connaught, whose seat was in Aidhne. After the Norman invasion, the area became Clanricard Burke territory. In the 20th century, the territory included the homes of Lady Gregory at Coole Park and W.B. Yeats at Thoor Ballylee. Their friend, Edmund Martyn of Tullira, inherited the Hynes castle of Dunguaire and sold it to fellow author, Oliver St. John Gogarty. Uí Fiachrach Aidhne Uí Fiachrach Aidhne was the southern branch of the Uí Fiachrach (also spelled Hy Fiachrach), who were the descendants of Fiachra Folt-leathan (of the flowing hair), second son of King Eochaidh Muigh Meadhoin, "Lord of the Slaves", and brother of Niall of the Nine Hostages (ancestor of the O'Neills), who lived in the 5th century. Their ancestors were traced by medieval scribes to Milesius, and through him to Adam. The larger, northern branch was called Uí Fiachrach Muirisce or Muaidhe (Moy River), or Uí Fiachrach In Tuaiscirt (of the North), and was located primarily in the counties of Mayo and Sligo. The chief sept was (O)Dowd or Doody (Ó Dubhda), and many more are counted in the race of Fiachra. (The Uí Fiachrach Finn or Uí Fiachrach Arda Stratha are of the neighboring Uí Maine tribe, and apparently not related to the other Uí Fiachrach.) One of Fiachra's five sons was Dathi (Diathi MacFiachrach), sovereign of Ireland for 23 years (405-428), and last pagan king of Ireland. He was killed by a flash of lightning at the Alps (Sliabh Ealpa) in 428. Dathi's third son, Eochaid Breac, had a son called Eoghan Aidhne, who had been fostered by a Firbolg tribe in the territory of Aidhne. The septs of the Uí Fiachrach Aidhne are descended from him. Eoghan's daughter was St. Faoileann, and his sons were Conn Berneach and Conall. Conall's son was Gobhneann, whose son was Cobthach, whose son was Colman (Columhan), eleventh king of Connaught. His sons were Laidgnen and Guaire, who were the 13th and 14th kings of Connaught, respectively. Guaire Aidhne became king in 655 AD, and there are many stories about him. Guaire had three sons: Nar, who was ancestor of the O'Moghans; Arthgal (Artgall), who was ancestor of the septs of O'Cleary, O'Heyne and Mac Gilla Kelly; and Aoedh (Hugh), ancestor of the O'Shaughnessys. Artgall's son, Feargal (Fergall), was King of Connaught for a short time. His son was Tiobrad (Toirbheartach), whose son was Cathmogh, whose son was Cumascach, whose son was Ceadach or Edalach. His son was Cleireach, from whom the Clearys, Hynes and KilKellys are descended.