FIG. 22. ORFORD CASTLE, SUFFOLK, 1810

The building of Orford Castle was begun in 1166. Strictly speaking, perhaps, it should not be called a castle: it was essentially a keep, and its purpose primarily was to serve as an outpost for observation and for the protection of the coast. The plan of the actual keep, if so we may term it, was peculiar, being circular within, and so much modified by the buttresses without as to present the appearance of a large number of angles.

Harwich.—This ancient seaport situated on the extreme north-eastern point of Essex has always been a place of some strategic importance. It formerly was encompassed by a wall which had four gates and three posterns. In addition Harwich once possessed a small castle and other fortifications, but owing to the inroads of the sea these have for many years been submerged. Traces of the walls or foundations of the castle were seen, however, in 1784, when an unusually low tide laid bare more than usual of the sea-bottom.

On the south side of the town are some ancient earthworks locally ascribed to the Romans, although upon slender evidence.

Colchester, which is situated on the river Colne, and perhaps not too far from the shore to take some part in the defence of the coast, has been in its time a place of great importance and of formidable strength. Its walls, of which considerable parts remain, are of Roman workmanship, and its castle, built largely of Roman materials, and therefore by some regarded as Roman in date, is almost unquestionably of Norman construction. It must be admitted, however, that the castle presents several features which differentiate it from the normal castles of the Norman period. Originally the walls were furnished with four principal gates, viz.: Head Gate, North Gate, East Gate, and St. Botolph’s or South Gate, and three posterns, viz.: West Postern in St. Mary’s Street, Schere Gate or South Postern, and Rye Gate or River Postern, but these have been demolished. The north and west sides of the town were defended by strong earthworks. The place was besieged for eleven weeks during the Civil War. It was held by the Royalist party, and on its fall, two of its most gallant defenders, Sir Charles Lucas and Sir George Lisle, were shot under the castle walls.

The weakness of mediaeval castles, built merely for passive resistance, has frequently been noticed, and what is true of them is equally true of the mediaeval walled town. Forces shut up within walls are obviously unable to prevent an enemy from over-running a country. It must be borne in mind, however, that the purpose of fortifications behind walls was not, and never has been, merely intended to oppose the ravages of the enemy. In that part of our military history which is subsequent to the use of gunpowder, the uses of walled defence has been varied and manifold. For example: they were intended to check the enemy’s advance; to give time for mobilization; to protect the strategical disposition of the army, especially in the early stages of a campaign; to protect important junctions in the lines of communications; and to safeguard magazines and stores against sudden and surprise attack of the enemy.

Cowling.—The castle at Cowling or Cooling, situated about seven miles to the east of Gravesend, and just two from the sea-shore, was built between 1380 and 1385 by John de Cobham. The gate-house, built in the regular form in vogue during the latter end of the fourteenth century, and comparable with that at Saltwood Castle and the West Gate of Canterbury, still remains in good preservation, as well as a good deal of the walls and angle-towers enclosing the inner ward, and certain parts of the walling enclosing the outer ward. The gate-house just referred to is on the south side of the outer ward, to which it gives access.

FIG. 23. COWLING CASTLE, KENT, 1784

Perhaps one of the most interesting things about Cowling Castle is the fact that it was built expressly for the defence of the coast against the French and the Spanish. This fact is rather pointedly referred to in the following contemporary inscription enamelled on copper plates attached to the eastern side of the gate-house: