now CIVITA LAVINIA, an old and important city of Latium, on the Appian Way, about 20 miles S. of Rome. Tradition describes it as a colony from Alba, but it first rose to importance in the fifth century B.C., when it took part against Rome as one of the thirty cities of the Latin League. After this date its name does not again appear in history, till, in the long wars between Rome and the Equi and Volsci, it is found siding with Rome. For some unexplained reason, it changed sides in B.C. 383, but was leniently treated by its old ally at the end of the war. In the great Latin war, B.C. 340, it again took part against Rome, and, in the general settlement at the close of hostilities, it obtained the Roman civitas, but without the suffragium. At a later period it obtained the suffrage also. After the time of Cicero, Lanuvium became a mere municipal town, and was only important as the chief seat of the worship of Juno Sospita, whose rites were celebrated first by the Lanuvians, and afterwards by the Romans, with great pomp and splendour. Lanuvium was the birthplace of the Emperor Antoninus Pius, who often went to live there, as did also his successors, M. Aurelius and Commodus. The little town of Civita Lavinia occupies part of the site of the old Lanuvium. Some shapeless ruins in the neighbourhood are supposed to mark the site of the temple of Juno; and a small portion of a theatre has also been brought to light.