COCKFIELD, a parish in the south-western division of DARLINGTON ward, county palatine of DURHAM; 8 miles (N. E.) from Barnard-Castle, containing 533 inhabitants. The living is a discharged rectory, with the perpetual curacy of. Staindrop annexed, in the archdeaconry and diocese of Durham, rated in the king's books at £9. 18., and in the patronage of the Marquis of Cleveland. A colliery was wrought so early as 1375, since which period coal has been constantly obtained here.' On Cockfield Fell are traces"of ancient intrenchments.