PAPCASTLE, a township, joint with Goat, in the parish of BRIDEKIRK, ALLERDALE ward below Darwent, county of CUMBERLAND, 1 mile (N. W.) from Cockermouth, containing 384 inhabitants. It is finely situated on an eminence above the river Darwent, and occupies the site of a Roman castrum, where a great number of urns and coins, remains of baths, &c., have been discovered. After the Conquest, the castle becoming the property of Waldeof, Lord of Allerdale, he caused it to be demolished, and the materials to be used in the erection of Cockermouth castle, the seat of his descendants.