Castlereagh_Lower
Castlereagh Lower
Place in Northern Ireland, United Kingdom
Castlereagh Lower (named after the former barony of Castlereagh) is a historic barony in County Down, Northern Ireland.[2] It was created by 1841 with the division of Castlereagh into two.[3] The barony roughly matches the former Gaelic territory of Uí Blathmaic, anglicized Blathewic.[4] It is bordered by three other baronies: Ards Lower to the east; Dufferin to the south; and Castlereagh Upper to the west and south-west.[2] Castlereagh Lower is also bounded by Belfast Lough to the north and Strangford Lough to the south-east.