Anderida is an ancient
Roman fort at Pevensey, near Eastbourne in Sussex,
England, built about A.D. 300 as part of a scheme of land-defense against the
Saxon pirates; repaired, probably by the great Stilicho
?, about A.D. 400; and after the [Norman Conquest]
? utilized by
William the Conqueror for a Norman castle. Its massive Roman enceinte still stands but little damaged.