Castletownbere (Irish: Baile Chaisleáin Bhéarra) is a small town in County Cork in Ireland. It is located on the southwest coast of Ireland, in West Cork, on Berehaven harbour near the entrance to Bantry Bay. It is also known as Castletown Berehaven. The name of the town comes from the no longer extant MacCarty Castle,[citation needed] and not Dunboy Castle which was home to the O'Sullivan clan. The nearby Puxley Mansion was burnt by the IRA in 1920. The conflict between the Gaelic former ruling family and newly enriched interlopers formed the basis for Daphne du Maurier's novel Hungry Hill named for the mountain of the same name which is the highest peak in the Caha range.