THE CONCENTRIC CASTLE, c. 1250, TO THE CASTELLATED MANSION PERIOD The inception of the concentric idea in castellation must not be ascribed to the English builders of the second half of the thirteenth century, inasmuch as the plan is essentially oriental and appeared in the Levant before 1200. Thus ChÂteau Gaillard, built by Richard I. in 1196 upon the banks of the Seine near Les Andelys, is based essentially upon the concentric type, though it does not absolutely conform to that ideal owing to the configuration of the ground. That crusading monarch was among the first to recognise the possibilities of the Saracenic form and based this castle upon it. Upon the only side where it could be attacked it offered first an outer triangular-shaped ward, with an encircling wall, having five towers upon its enceinte. The thousands of warriors returning from the many crusades were well acquainted with the At Constantinople the crusading hosts before the city found themselves confronted by a comparatively low fortified wall, bristling with impediments; within it, at the distance of some hundreds of feet, arose another and taller wall, while beyond that again a third wall, the highest of all, appeared. These walls extended for more than three miles upon the western side, with one hundred towers; all were embattled, and they offered a stupendous scene to the wondering eyes of the Crusaders as they vanished in grand perspective into the distance. There is no castle in England which presents more than three hundred yards of continual front. The capture of the first defence of the eastern capital by no means imperilled the integrity of the second, while the prospective losses of the assailants when confined in the narrow space between the first and second lines was appalling to contemplate. The essential principles underlying the construction of a castle erected upon the concentric plan were:— 1. That the natural features of the selected site should be adapted 2. That a series of defences independent and complete in themselves The castle-builders of the second half of the thirteenth century rigidly adhered to the principles embodied in the first clause given above; they did not produce a structure of the Motte and Bailey, or the Keep and Base-court types, with little regard to the situation and configuration of the ground, but made their plans with the utmost care, embracing every advantage which the site presented. As a The second clause naturally suggested a concentric plan whereby each defence was placed within the other, the strongest of all naturally being in the centre. But as most of the English castles were rendered concentric by means of additions to buildings previously existing, the pure concentric ideal is seldom reached except in those structures reared entirely at that period, the others attained it more or less by developing conditions already obtaining. The ideal concentric outline may be gleaned from the accompanying plan, where the three entrances are a special feature, each being placed as far as possible from the one adjacent. By this device the assailants who had managed to capture the outer enceinte would be compelled to pass under one half of the second line of towers and curtain walls before reaching the entrance pierced through them, being all the time subjected to a plunging fire of deadly missiles. The same would occur if the second line were captured. The gates were in all cases It was during this period that machicoulis and The maximum development of the art of castle-building in the British Isles occurred in the reign of Edward I. and is exhibited in its best form in those magnificent buildings which he erected in Wales to consolidate the conquest of that country. With the great Snowdonian range as the centre he placed a ring of fortresses at those strategic points, chosen with remarkable military perspicacity, where they would be of the utmost advantage in commanding the widest stretch of country. Criccieth and Harlech, standing upon the sites of previous strongholds, and Conway and Carnarvon upon entirely new ground, are the most prominent and famous of this encircling ring. The term "Edwardian," however, for a Concentric Castle so frequently used, is a misnomer, because some of the grandest examples of the style date from the time of Henry III.; the outer ward of the Tower of London, for example, rendered it concentric in 1240 to 1258. The Castle of Harlech approaches the concentric The inaccessibility of this massive pile, perched 200 feet above the adjacent sea and producing a strangely impressive effect by reason of its grim vastness, has been repeatedly tested since its walls were first raised. Owen Glendower beat in vain against its impregnable strength and lost Mortimer, his son-in-law, before its walls. In the Conway Castle, one of the most impressive and majestic of medieval fortresses in Britain, is situated in a romantic and picturesque spot at the mouth of the river Conway. It presents a perfect ideal of a fortress and a fortified town, the massive accompanying walls of the latter forming an integral portion of the defence as a whole. The town walls are over a mile in length and are in a singularly good state of preservation; there are twenty-one towers, arranged at regular intervals along this enceinte, and four gates, over one of which is a row of machicoulis, twelve in number, projecting from the upper part of the wall. It was also protected by a dry ditch and with drawbridges placed before The Castle occupies an irregular oblong area divided into a larger and smaller ward by a transverse wall, which is carried across at one of the narrowest parts; thus where breadth is unobtainable, as at Conway and Carnarvon, ward is set behind ward. Eight lofty circular towers are arranged at intervals around the massive curtain wall, four of them being provided with small look-out turrets upon their summits. In the larger bailey the banqueting hall and domestic apartments were placed. The Castle and also the town fortifications were erected by King Edward I., with Henry de Elfreton as the architect; they were completed in 1284, and occupied by the King and Court in 1290, upon the occasion of a Welsh rising. The monarch, however, was nearly starved out in his fortress through an unusual flood whereby provisions were unable to be sent across the river. Previously, however, he had passed a Christmas there and the assertion that Conway was really a combination of a castle, a palace, and a pleasant residence is perfectly legitimate. Richard II. assembled his forces at Conway to resist the invasion of Bolingbroke, but was induced to leave it, and his betrayal and Beaumaris Castle was erected by King Edward I. about 1295, and approximates more to the concentric ideal than perhaps any other castle in Britain. The outer enceinte is an almost regular octagon, strengthened by towers at each of the angles and in the centre of each curtain, excepting the one in which the entrance gateway is placed. The inner enceinte is square in shape and of very great height, thus commanding Carnarvon Castle may be confidently claimed as the finest example of its type in Europe. It stands upon a site previously unoccupied and was commenced by King Edward I., who raised the walls sufficiently high to cover the garrison, and completed by his son, Edward II., who carried the walls and towers to their present altitude. It is built of limestone blocks with string-course bands of dark-brown sandstone, the mouldings, doorways, and other ornamental portions also being of the same material. The plan of the Castle approaches that of a kidney form, the whole of the space enclosed forming Although the enceinte of the Castle is plentifully supplied with towers which undoubtedly form the chief feature of its picturesque appearance, yet it is to be questioned if the latter added very materially to its powers of resistance when compared with the walls, which are in places over 15 feet in thickness, and of very great height, often over 100 feet. These walls contain, at the points most vulnerable to an attack, a double line of galleries traversing the thickness and leading easily into each other for mutual support. The outer walls of these passages are plentifully supplied with loopholes, and as the merlons upon the battlements are also pierced with oillets, a triple discharge of quarrels The moat is of great width and depth and formed no inconsiderable portion of the original defences. The main idea of the architect when planning Carnarvon Castle appears to have been to render attacks upon the general line of the enceinte impossible of success, by reason of the galleries and the thickly-set mural towers, and thus to lead the assailants to concentrate upon the chief entrance. This, however, was protected primarily by the town walls, then by a formidable moat, two massive towers, a narrow entrance furnished with no less than four portcullises, with two inner obstructions of a similar nature to be overcome ere the entrance was forced. Such an elaborate concentration of effective resistance is seldom encountered in medieval fortresses, and the fact that Carnarvon Castle has never been taken by assault, but only subdued by starvation, is amply accounted for. This magnificent structure has always been a Crown possession, and at the present time is preserved with a care deserving of all praise. Although as we have seen the Concentric Castle is usually associated with the reign of Edward I., and the formidable strongholds in North Wales are generally cited as the perfection of the type, yet earlier attempts at the ideal had been made in Britain, and in no greater perfection than at the well-known Castle of Caerphilly in Glamorganshire, completed a year before the King came to the throne. From a military point of view it is the grandest example of the concentric ideal in our islands, and it is perhaps to be deplored that this embodiment of a medieval fortress has never been subjected to the stern arbitrament of war, and that no great military renown is associated with its history. It was only assailed once, in 1648, when the It was erected and completed in 1271 by Gilbert de Clare, Earl of Gloucester, and stands upon a mound of gravel in the middle of an artificial lake, produced by damming up two water-courses and turning the contents of a marsh into the catchment basin thus formed. The curtain of the middle ward is of no great height, that of the inner ward being thus able to dominate it. The outer ward is essentially divided into two, each forming a tÊte-du-pont. The eastern portion, and the smaller, has a The immediate object of its erection was to overawe the Welsh Marches, but these had been reduced to order almost at the same time it was built; subsequently it A still earlier example, though not perhaps embodying all the conditions of the type, is Not far from Llandeilo, a village near Carmarthen, stand the remains of a Concentric Castle around which local tradition has woven a web of romance, asserting that all history is lost in remote antiquity and leading the imagination to run riot in conjuring up the identity of its former inmates. Upon the south side the walls stand upon a precipice with a sheer drop of probably 500 feet, while a climb of over 200 feet is necessary to reach the northern face. It is called Carreg Cennen and occupies the summit It must not be imagined that the castle-building energies of Edward I. were entirely expended upon the grand examples of his work found in North Wales, on the contrary there are many buildings to be discovered where his handiwork, or that of contemporary barons, is a prominent feature. A tendency appears to have manifested itself at that period to alter existing castles of a previous type so that they conformed in some way to the concentric ideal, and Pevensey, Chepstow, and Corfe are cases in point. In addition to Caerphilly in Glamorganshire there are many other structures in South Wales showing a very high ideal of castellation, indeed that portion of the Principality has been termed the "Land of Castles," and the appellation is Pembroke Castle, with the town walls supporting it, is perhaps the most important pile to be found in this district; it embodies additions of varying dates in its massive walls and towers. The great gatehouse and circular Norman Keep are undoubtedly its chief attractions at the present day when, although shattered by powder after Cromwell's capture by means of starvation, and much subsequent spoliation, it presents one of the most imposing aspects to be found in the kingdom. Carew Castle is deservedly celebrated for picturesqueness and affords an illustration of the use of the angle-spur at the foot of drum towers as a preventive against mining. Cilgerran Castle occupies a position which is probably unparalleled in South Wales. It approaches very closely to the Edwardian type, but the area chosen has not entirely dominated the plan; it once possessed an inner and outer bailey with a great portcullised gatehouse and massive cylindrical towers, two of which still In the upper valley of the Wye the efficiency of castles was of great importance, inasmuch as they guarded one of the great lines of incursion from the heart of Wales into the Marches; here Edwardian additions may be seen at Builth where a donjon was placed upon a motte which had already been encircled by a Shell Keep, while a circular rampart surrounding the whole bailey made a very presentable representation of the concentric ideal. At Bronllys, farther to the south, a cylindrical tower was the chief addition, while at Tretower, still farther south near Crickhowell, a Shell Keep appears to have been inserted within the remains of a previous Rectangular Keep defending the motte. The Tower of London.—This great fortress, palace, and prison, unique among the castles of England, dates from the time of William the Conqueror. The site occupied a position upon the river Thames immediately to the east of Roman It was, however, necessary to erect a more substantial fortress in order to overawe as well as protect London, and in 1078, William entrusted Gundulf, the architect-bishop of Rochester, with the commission. The great Keeps at Rochester and West Malling were also designed by him, and possibly he had much to do with those at Norwich, Colchester, and other places in England. To this period may also be ascribed some of the towers and part of the massive curtain wall lying to the west of the inner ward or ballium which at that period contained the royal palace, apartments for the court, and dwellings for the garrison. Possibly a narrow ditch encircled the walls on the inner line of the present spacious moat. In 1155, the buildings were repaired by Corfe Castle.—Seated upon an isolated chalk hill in the island of Purbeck, with a natural escarpment upon three sides where two rivers bifurcate on their way to Poole Harbour, and with a gentle slope upon the fourth side, the great castle of Corfe reared its massive front through many centuries of dramatic history, marked more than once with Its site is connected by history with the Saxon dynasty, for King Edgar is said to have founded it; and here the tragic deed was perpetrated by which it is popularly known, when his son Edward the Martyr, King of the West Saxons, was treacherously murdered by Elfrida his step-mother. Such an unholy deed was a sinister incident in the birth of a castle, and appears to have thrown a gloom over its subsequent history. Four miles to the southward rises the bold coast-line of the Dorset littoral, while northward is the great depression occupied by the waters of Poole Harbour. It appears to have been successively a Saxon Palace, then a Norman, and afterwards an Edwardian fortress. King Stephen besieged it in The Castle occupies an area of about three acres. The Norman work consists chiefly of a square Keep occupying the most elevated part of the hill, where possibly the Saxon Palace had been situated, and, with its enceinte, formed the innermost ward of the Castle. It is about 60 feet square, and 80 feet high, with the usual flat pilasters; the masonry is remarkably good, On the east side of the Keep are the remains of the Queen's hall of Early English work, and other buildings within the inner ward appear to be of the same date. The gateway of the middle ward was overthrown by undermining, part of it has sunk and moved out of the perpendicular. The great curtain wall reaching between this gateway and the Keep is comparatively intact, and forms one of the finest defences of that description now remaining in Britain. The entrance to the outer ward has been sadly wrecked; the two drum towers have been blown forwards by the explosive force of gunpowder, the vaulting is rent, and the adjacent wall to the west overthrown. More than half of the tower called the Buttavant Tower has been blown clean away, while the minor bastions and the encircling wall generally have either disappeared or been thrown out of the perpendicular. The order to "slight" the Castle, i.e. to dismantle it, was issued by the Parliament in Chepstow.—The noble ruins of Chepstow Castle form one of the attractive features of the celebrated Wye valley. They stand in a grand position surmounting a vertical escarpment springing from the river and protected on the three remaining sides by ditches of formidable width and depth. The ground plan is that of an elongated parallelogram, one of the longer faces being that overlooking the river. This is subdivided The main entrance to the Castle is on the eastern side, under a fine Norman arch flanked by two massive circular towers; the passage was guarded by a portcullis, and two meurtriÈres in the groining. Not far from this entrance the lesser Hall is placed. The Clare family, Earls of Pembroke, were the earliest Norman owners of Chepstow, after William Fitz-Osborne the founder, the last of whom, Richard Strongbow, is well known in connection with the Conquest of Ireland in 1172. His daughter Isabel married one of the Bigot family, and subsequently it passed to Sir Charles Somerset, Earl of Worcester, from whom it has descended to the present owner, the Duke of Beaufort. Chepstow saw much of the Civil War, being held at first by the Royalists, but it was assailed by Colonel Morgan Leeds.—This castle is undoubtedly one of the most picturesque in the British Isles, and its beautiful natural surroundings are enhanced by a rich history extending back to the Saxon Period. Here Ethelbert of Kent raised a fortification which was given to Bishop Odo at the Conquest and, at his fall, came into the CrÉvecoeur family, who began the Norman building. It remained in their hands until the Barons' War when it reverted to the Crown, with whom it Among the many historical associations connected with the Castle is that of the frail Queen Isabella, wife of Edward II. She appeared one evening before the gateway with a large force of attendants and demanded admission; under the circumstances then obtaining the Governor, Sir Thomas Colepeper, thought fit to refuse, being without the king's orders, and, upon a display of force, saluted the visitors with a shower of arrows. She repaired to the king and so influenced him that the Castle was besieged and captured; the Castellan was hanged over the drawbridge with eleven others. At Leeds Henry V. received the Emperor Sigismund and imprisoned his step-mother Joan for practising witchcraft; subsequently, Eleanor, the wife of good Duke Humphrey of Gloucester, was tried here for the same offence in 1431. From this island drawbridges permit of passage to the larger central island, around which a curtain wall of great strength has been built at the edge of the water with drum towers at the principal angles. Inside this was a second and concentric wall, thus forming an Inner and Outer Bailey, but only the southern gate of this has been preserved. It is probably of late Norman work. The domestic buildings occupied the northern end of the inner area, now superseded by a splendid mansion standing upon Norman foundations. Another drawbridge gives upon the |