Castlereagh Lower

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.

Castlereagh Lower An Caisleán Riabhach Íochtarach[1] (Irish)
Location of Castlereagh Lower, County Down, Northern Ireland.
Sovereign state	United Kingdom
Country	Northern Ireland
County	Down

List of settlements

Below is a list of settlements in Castlereagh Lower:^[5]

Towns

• Bangor (also partly in barony of Ards Lower)
• Comber
• Holywood
• Newtownards (also partly in barony of Ards Lower)

Villages

• Ardmillan
• Ballygowan
• Crawfordsburn

Population centres

• Dundonald

List of civil parishes

Below is a list of civil parishes in Castlereagh Lower:^[5][6][7]

• Bangor (also partly in barony of Ards Lower)
• Comber (also partly in barony of Castlereagh Upper)
• Dundonald
• Holywood
• Killinchy (also partly in baronies of Castlereagh Upper and Dufferin)
• Kilmood
• Knockbreda (also partly in barony of Castlereagh Upper)
• Newtownards (also partly in barony of Ards Lower)
• Tullynakill