Alnwick.—The magnificent Castle of Alnwick is an excellent example of a Shell Keep fortress; it stands upon elevated ground on the south bank of the Aln river and about 5 miles from the sea. At the Conquest the site, which probably had an earlier defence upon it, was granted to Ivo de Vescy, whose daughter married Eustace Fitz-John. The constant inroads of the Scots necessitated a stronger fortress at this point, and, about 1140, Fitz-John began the building of which some splendid remains are still visible, chiefly in the innermost gateway and the outer curtain wall. His son, who took his mother's name of de Vescy, placed the Castle in the custody of the Empress Maud's uncle, King David of Scotland. In 1174, William the Lion invaded England and besieged the Castle, but a coalition of the northern barons captured the king and took him to Richmond, thus raising the siege. The de Vescy family died out in 1297, and after a temporary occupation by Anthony Bek, Bishop of Durham, was purchased by Sir Henry de Percy, a name which is associated with everything that is brave, chivalrous, and martial in the county of Northumberland. The Percy who fought through the wars of Edward III. and was present at Halidon Hill and Neville's Cross was considered as second only to the king in importance, while the marriage of his son to Mary Plantagenet, daughter of Henry, Earl of Lancaster, proved that it was worthy of alliance with the blood-royal.

In 1405 Alnwick was besieged, and yielded to Henry IV., following upon the battle of Shrewsbury and the defection and death of Hotspur; Henry V., however, restored the heir to his possessions, and created him Earl of Northumberland. He was killed at the first Battle of St. Albans, 1455, while his son fell at Towton in 1461. The Castle saw much fighting in the latter part of the fifteenth century. The long line of the Percies came to an end in 1670; it was probably the most historic of our great English families, and eight bearers of the title met with violent deaths, chiefly on the battlefield. The daughter of the last Earl married Charles Seymour, Duke of Somerset, and their daughter married Sir William Wyndham, thus conveying to him the estates of Petworth, Egremont, and Leconfield. In the next century a Duke of Somerset left a daughter who inherited Alnwick and married Sir Hugh Smithson, who was created Earl Percy and became the ancestor of the present owner.

The Castle is cut off from the town of Alnwick by a deep combe, which has been much scarped; it is a matter for doubt whether the battlemented walls of the town were ever joined to those of the Castle, the same as at Conway and elsewhere. The Shell Keep was erected in 1140, but is so surrounded by subsidiary towers as to almost lose the characteristic. It lies in the centre of the great enclosure, and dual defences run east and west to the enceinte, thus making two wards, or baileys. The knoll upon which the Shell rests may either be a natural feature or the artificial motte of a previous castle. The great gateway and the barbican present excellent examples of military architecture of the fourteenth century. In the middle of the eighteenth century repairs and restorations took place in the execrable taste then prevalent, some of which remain to the present time to mar the aspect of an otherwise superb relic of the past.

Arundel.—The Manor of Arundel is one of the most ancient in the kingdom, being specifically mentioned in the time of Alfred the Great, while, respecting the Castle standing there, it is unique in being the only one mentioned in Domesday as being in existence before the accession of William I. That king granted it to the great Montgomery family, who were succeeded in its possession by King Henry I., through the rebellion of Robert de Belesme. It afterwards passed in succession through the families of D'Albini, Fitz-Alan, and Howard for seven centuries to its present owner, the Duke of Norfolk.

Many important events have linked this great military structure indissolubly to the history of England. Here the Empress Maud was received with her brother, the Earl of Gloucester, in 1139, which precipitated an attack by King Stephen, but the most famous event connected with it was the siege of 1643, when Sir William Waller, first overcoming the defences of the Town, placed his guns on the top of the Church Tower and proceeded to batter the Castle. It capitulated after seventeen days' siege, and the domestic buildings were levelled to the ground.

The Castle is constructed upon the end of a ridge of Chalk extending from the South Downs, with a natural escarpment upon the east and south. It is an excellent example of masonry superseding earthwork defences without obliterating their original lines. The position is such as to suggest a prehistoric camp of the promontory type. The chief original defence was the great moated mount, which is over 200 feet in diameter; on the south side the height from the summit to the bottom of the ditch is 70 feet, being altogether but a little smaller than Windsor. Like the latter it possesses two baileys, occupying over 5 acres in extent, and together forming an oblong enclosure. The mount stands near the centre of the western side upon the enceinte, the ditch forming part of the outer ditch of the Castle in one place. This outer fosse has been much strengthened by artificial means, but is in many places natural.

ARUNDEL CASTLE, SUSSEX.