or CRUSTUMIUM, in Ancient Geography, a city which originally belonged to Sabinum, but in later times was always regarded as belonging to Latium. It was situated in the midst of a very rich and fertile plain, from which large quantities of grain and fruit were sent to Rome. Crustumerium was one of the cities which rose in arms to avenge the rape of the Sabine women. The army was defeated, however, and the city itself became a Roman colony. It regained its independence, and was a second time taken by the Romans under the first Tarquinius, but it did not finally acknowledge the supremacy of Rome till 499 B.C. Crustumerium was the place to which the Roman army retired, when led by the Decemvirs against the Sabines B.C. 447. This event was subsequently known in history as the Crustumerina secessio. After this date the name of the city does not again occur in the annals of Rome. No remains of the city or traces of its site have been discovered.