| Geashill | |||||||
| Native Name: | Géisill (Irish) | ||||||
| Settlement Type: | Barony | ||||||
| Pushpin Map: | Ireland | ||||||
| Pushpin Relief: | y | ||||||
| Subdivision Type: | Sovereign state | ||||||
| Subdivision Name: | Ireland | ||||||
| Subdivision Type1: | County | ||||||
| Subdivision Name1: | Offaly | ||||||
| Area Total Km2: | 124.9 | ||||||
| Area Total Sq Mi: | 48.23 | ||||||
| Module: |
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Geashill is a barony in County Offaly (formerly King's County), Ireland.
The name Geashill is from the village of Geashill (Irish Géisill, "place of swans").[1]
Geashill barony is located in central County Offaly, south of the Grand Canal. The Tullamore River and Clodiagh River flow through it, and it contains the Hawkswood Bog Natural Heritage Area.
Geashill is roughly formed from the ancient Túath Géisille of the Uí Failge septs of Leinster. As Viscount Clanmalier the Ó Diummasach (O'Dempsey) held part of this barony, where the main castle of the clan was located. The Ó hAimherigin (O'Bergin) sept are noted as chiefs in this barony in medieval times.[2]
Below is a list of settlements in Geashill barony: