SILCHESTER, a parish in the hundred of HOLDSHOTT, Basingstoke division of the county of SOUTHAMPTON, 7 miles (N.) from Basingstoke, containing 407 inhabitants. The living is a rectory, in the archdeaconry and diocese of Winchester, rated in the king's books at £9. 6. 0., and in the patronage of the Bishop of Winchester. The church, dedicated to St. Mary, is partly in the early, and partly in the later, style of English architecture. There is an endowed school for five children. This place, situated near the borders of Berkshire, was the Caer Seiont, or Segont, of the Britons, and the Vindonum of the Romans, having been one of the principal stations of the latter in the south of England. The usurper Constantine was invested with the purple in this city, in the year 407- About 493, it was destroyed by the Saxon chief, JElla, on his march to Bath, from the coast of Sussex, where he had made his landing. The enclosed area is in the form of an irregular octagon, nearly a mile and a half in circumference. The walls are most perfect on the south side, being in some places nearly twenty feet high. About, one hundred and fifty yards from the north-east angle of the walls is a Roman amphitheatre, now covered with trees; and about a mile and a half to the northwest, near a village called the Soak, are some remains of a camp. Silchester confers the title of baron upon the family of Pakenham, Earls of Longford.