Newcastle (County Wicklow barony)

Newcastle (An Caisleán Nua) is a barony in County Wicklow, Ireland.

Etymology
Newcastle barony derives its name from the village of Newcastle.

Location
Newcastle barony is located in eastern County Wicklow, opening onto the Irish Sea.

History
The Uí Theig (O'Tighe), cousins to the Uí Máil, are noted early here, as well as the Uí Braen Deilgni, a branch of the Uí Garrchon. This was part of O'Byrne (Ó Broin) country after the 12th century, referred to in Gaelic as Crioch Branach.

List of settlements
Below is a list of settlements in Newcastle barony:
 * Ashford
 * Glenealy (northern part)
 * Kilcoole
 * Newcastle
 * Newtownmountkennedy