The turret-heads of the gatehouse and two western towers have parapets projecting upon a corbel-table about 6 inches. There are no traces of holes for brattices; but upon the exterior of these two towers the putlog-holes are arranged in a spiral ascending form, east to north. In the north-west tower, on its east face, at the height of the old curtain, is a row of round holes about a foot apart, and from this level the spiral commences. It is pretty clear that having built the curtain, the masons here threw out a platform, and that the spiral round, by which the materials were raised for the upper part of the tower, began here. The tower of Coucy was scaffolded in the same way. There is throughout the building a remarkable absence of vaulting. It was confined to the oratory and to parts of the entrance passage. The bird’s-eye view here given is taken from the east or landward side, and shows the entrance, with its great gatehouse, here, as at Caerphilly, seen to cross and close the narrow outer ward. The northern postern is also shown. The castle seems to have escaped the usual dismantling that followed upon the civil wars, and no part has been blown up. It has, however, been freely used as a quarry by the people around; and, with its iron and timber, much of its ashlar has been rudely detached and stolen. There is but little evidence of any material addition to, or alteration in, the work of Edward I., which is singular, seeing that the place was long the seat of an assize, and the judges lodged here. It was then also a prison, and the windows were heavily barred, the bars forming shallow cages in front of the windows, as in some of the Italian palaces. Any later work introduced for the judicial or prison arrangements has either fallen down or been removed. The quarry whence the castle was built is pointed out on the hill-side, a short distance to the south-east. Although the present castle certainly is not older than the reign of Edward I., probably about 1280, the Welsh claim to have been the founders of an older fortress on the same spot, called by them Caer Gollwyn, from Collwyn ab Tangno, a Welsh chief who lived A.D. 877. Possibly a spot so inviting might have been occupied by a camp; but all that is now seen, whether of earthwork or masonry, is evidently not older than the thirteenth century. In 1404 the castle is said to have been taken by Owen Glyndwr; and Margaret of Anjou was sheltered here in 1460, in memory of which event the south-east tower for some time bore her name. There does not seem to be any detailed account of the siege of 1468, when the governor was Dafydd ab Ievan ab Einion, the same who had received Queen Margaret, and whose boast it was, that as he had held a castle in France till all the old women in Wales had heard of it, so he would hold his Welsh trust till it had become equally well known in France. He seems to have redeemed his pledge by standing a long siege, and yielding at last, on honourable terms, to