Leaving this lovely town, the Usk makes more directly for the sea. A few miles away to the east, in the valley of one of its tributaries, are the ruins of Raglan Castle, standing on a richly-wooded eminence not far from the village of the same name. It was begun not earlier than the reign of Henry V., and apparently not finished until the time of Charles I.; and so strong was it that it had the distinction of being one of the last fortresses in the kingdom to surrender to Cromwell's men. It would be interesting to recall the story of the siege which it endured, and to describe the lovely remains of it; but it lies too far out of our course, and we must return to our river and follow it through the pretty scenery it traverses to the town to which it has lent its name. In days long gone by, Usk had to bear many a sore blow from Owen Glendower, but now it has no more alarming invaders than the placid, contemplative wielders of the rod--for here the Usk is famous for its salmon and its trout. Standing upon a tongue of land formed by the confluence of the Olwey with the main stream, Usk has been identified with a Roman station; and though the evidences are external rather than internal, the theory has been almost universally accepted of antiquaries. Of its castle, occupying a commanding site near the river, and still retaining its outer walls in very fair preservation, with the gateway, towers, and keep, the precise origin is not known; but in the reign of Henry III. it was in the hands of Robert de Clare, Earl of Gloucester. From this family it passed to the Mortimers, Earls of March, and in the reign of Henry VI. was granted to Richard, Duke of York, as nephew of the last of the Mortimers. It became a favourite residence of this personage, and is believed to have been the birthplace of Edward IV. and other princes. Of the scathe which Owen Glendower had wrought at Usk we have already spoken, but it remains to add that the citizens were at last avenged, for here he sustained a crashing defeat and had to flee to the mountains.