COLLINGBOURN-DUCIS, a parish in the hundred of ELSTUB-and-EVERLEY, county of WILTS, 2f miles (N. W.) from Ludgershall, containing 476. inhabitants. The living is a rectory, within the jurisdiction of the peculiar court of the Lord Warden of Savernake Forest; rated in the king's books at £16. 6. 8., and in the patronage of the Marquis of Ailesbury; The church is dedicated to St. Andrew. This was. formerly part of the duchy of Lancaster, from which it acquired the adjunct to its name; but Henry VIII. alienated it to the Earl of Hertford, afterwards Duke of Somerset, and Protector of England, upon whose -attainder it reverted to the crown, and was granted by Queen Elizabeth to Edward, Earl of Hertford, whose descendants inherited all the former possessions of the Duke of Somerset.