County Meath High King of Ireland. It formed from the eastern part of the former Kingdom of Mide (see Kings of Mide) but now forms part of the province of Leinster. Historically, the kingdom and its successor territory the Lordship of Meath, included all of counties Meath, Fingal and Westmeath as well as parts of counties Cavan, Longford, Louth, Offaly and Kildare. The seat of the High King of Ireland was at Tara. The archaeological complex of "Brú na Bóinne" is 5,000 years old, and includes the burial sites of Newgrange, Knowth and Dowth, in the north-east of the county. It is
County Offaly out across the county with the Bog of Allen extending into four other counties. The county consists of approximately 42,000 hectares of peatlands which is 21% of Offaly's total land area. Offaly contains approximately of forest and woodland area, which only amounts to 4.5% of the county's land area. This includes woodlands within the Slieve Blooms and the Lough Boora Parklands. Roughly 75% of Offaly's forested area is Conifer High Forest. The following are the historical baronies located in County Offaly: One of the earliest known settlements in County Offaly is at Boora bog which dates back to the Mesolithic