Castlereagh An Caisleán Riabhach (Irish) | |
|---|---|
Location of Castlereagh, County Down, in present-day Northern Ireland. | |
| Sovereign state | United Kingdom |
| Country | Northern Ireland |
| County | Down |
Castlereagh (from IrishAn Caisleán Riabhach, meaning 'the grey castle')[1] is the name of a former barony in County Down, present-day Northern Ireland.[2] It spanned the north-eastern area of the county bordering the baronies of: Ards to the east; Belfast to the north; Iveagh to the west south; and Dufferin, Kinelarty, and Lecale to the south. By 1841 the barony was divided into Castlereagh Lower and Castlereagh Upper.[3]