Belfast Castle is set on the slopes of Cavehill Country Park, Belfast, Northern Ireland in a prominent position 400 feet m) above sea level. Its location provides unobstructed views of the city of Belfast and Belfast Lough.
Cullohill Castle, built in 1425 by Finghin Mac Giolla Phádraig was the principal stronghold and residence of the Mac Giolla Phádraigs of Upper Ossory. It was cannoned and wrecked by the Cromwellians. In 1657 it was ruinous and uninhabited.