CASAMARI, a Cistercian abbey in the province of Rome, 6m. E.S.E. of Veroli. It marks the site of Cereatae, the birthplace of Marius, afterwards known as Cereatae Marianae. The abbey is a fine example of Burgundian early-Gothic (1203-17), paral leled in Italy by Fossanuova alone (which is almost contemporary with it), and is very well preserved.