Kingdoms of ireland
Ok, at the time of my novel, Raiding Cúailnge, Ireland – the far-flung western isle – was divided into five large kingdoms – Connacht (Connachta), Ulster (Ulaid), North Lenister, South Lenister and Munster. The Lenister side of the Great Plain of Ireland was known as Magh Breagh. The Hill of Tara (Teamhair) is located there and is the most famous assembly (Feis) place in Ireland and traditionally the seat of the Irish High King, the Ard Rí
Cruachain was the royal seat of power for Connachta (and Queen Medb), while Eamhain Macha was the pre-eminent site in the Ulaidh, ruled over by Conor mac Nessa, as detailed in my novel, Raiding Cúailnge in the chapter called The Taking og the Kingship.