BAMBOROUGH, Northumberland.--We first hear of this castle in the reign of Rufus, when it was defended against the king by Robert Mowbray, the rebel Earl of Northumberland; but there can be little doubt that the earliest castle on this natural bastion was built in the Conqueror's reign. In the 13th century certain lands were held by the tenure of supplying wood to the castle of Bamborough, and it was declared that this obligation had existed ever since the time of William I.[260] William certainly found no castle there, for Bamborough had fallen into utter ruin and desolation by the middle of the 11th century.[261] William's hold on Northumberland was too precarious to give opportunity for so long and costly a work as the building of a stone keep. It is more probable that a strong wooden castle was the fortress of the governors of Northumberland under the first Norman kings, and that the present stone keep was built in Henry II.'s reign.[262] There is no motte at Bamborough, nor was one needed on a site which is itself a natural motte, more precipitous and defensible than any artificial hill.[263] As the Domesday Survey does not extend to Northumberland, we have no statement of the value of Bamborough. The area of the castle is 4-3/4 acres. BARNSTAPLE, Devon (Fig. 9).--This castle is not mentioned in Domesday, but the town belonged to Judhael, one of the followers of the Conqueror, whose name suggests a Breton origin. William gave him large estates in Devon and Cornwall. A charter of Judhael's to the priory which he founded at Barnstaple makes mention of the castle.[264] Barnstaple, at the head of the estuary of the Taw, was a borough at Domesday, and the castle was placed inside the town walls.[265] The motte remains in good condition; the winding walks which now lead to the top are certainly no part of the original plan, but are generally found in cases where the motte has been incorporated in a garden. There was formerly a stone keep, of which no vestige remains.[266] The castle seems to have formed the apex of a town of roughly triangular shape. The bailey can just be traced, and must have covered 1-1/3 acres. The former value of Barnstaple is not given in the Survey, so we cannot tell whether it had risen or not. [Illustration: FIG. 9. Barnstaple, Devon. Bishop's Stortford, Herts. Berkhampstead, Herts.] BELVOIR, Leicester.--This castle was founded by the Norman Robert de Todeni, who died in 1088.[267] It stands on a natural hill, so steep and isolated that it might be called a natural motte. The first castle was destroyed by King John, and the modernising of the site has entirely destroyed any earthworks which may have existed on the hill. There appears to have been a shell wall, from the descriptions given by Nicholls and Leland.[268] It was situated in the manor of Bottesdene, a manor of no great importance, but which had risen in value at the date of the Survey.[269]