a village in Northumberland, on the sea-coast, fourteen miles north of Alnwick, and once a royal borough. Its very ancient castle stands on an almost perpendicular rock close to the sea, and is accessible only on the south-east side, on a spot where the castle or palace of the kings of Northumberland, supposed to have been built by King Ida, who began his reign about the year 547, is said to have stood. The castle and property connected with it were vested by Lord Crewe, bishop of Durham, in trustees, for charitable purposes, in virtue of which a patrol is kept on the coast, apartments are provided for shipwrecked seamen, together with a storehouse for goods, &c., saved from wrecks; and other apartments are used as granaries for corn, to be sold cheap to the poor in times of scarcity. Bamborough has an infirmary and dispensary, with a resident surgeon, and also a large library. Pop. in 1851, 466.