Érainn

Gaelic overkingdom that included parts of western Scotland and northeastern Ulster in Ireland

Osraige (Old Irish) or Osraighe (Classical Irish), Osraí (Modern Irish), anglicized as Ossory, was a medieval Irish kingdom comprising what is now County Kilkenny, western County Laois and parts of eastern County Tipperary, corresponding to the Diocese of Ossory. The home of the Osraige people, it existed from around the first century until the Norman invasion of Ireland in the 12th century. It was ruled by the Dál Birn dynasty, whose medieval descendants assumed the surname Mac Giolla Phádraig.

thumb|upright=1.25|The Iverni ("Iwernoi" above) are one of the population groups mentioned in Ptolemy's Geography. The Iverni (, '''') were a people of early Ireland, first mentioned in Ptolemy's 2nd century Geography as living in the far south-west of the island. He also names a "city" called Ivernis (, ') in their territory, and observes that this settlement has the same name as the island as a whole, Ivernia (, '). These Iverni are identified with the Érainn (Érnai, Érna), a people attested in Munster and elsewhere in the early Middle Ages. They included the Corcu Loígde, Corcu Duibne, Corc

Gaelic dynastic-grouping and territory

kingdom in medieval Kerry, Ireland