CIVIDALE DEL FRIULI (anc. _Forum Iulii_), a town of Venetia, Italy, in the province of Udine, 10 m. E. by N. by rail from the town of Udine; 453 ft. above sea-level. Pop. (1001) town, 4143; commune, 9061. It is situated on the river Natisone, which forms a picturesque ravine here. It contains some interesting relics of the art of the 8th century. The cathedral of the 15th century contains an octagonal marble canopy with sculptures in relief, with a font below it belonging to the 8th century, but altered later. The high altar has a fine silver altar front of 1185. The museum contains various Roman and Lombard antiquities, and valuable MSS. and works of art in gold, silver and ivory formerly belonging to the cathedral chapter. The small church of S. Maria in Valle belongs to the 8th century, and contains fine decorations in stucco which probably belong to the 11th or 12th century. The fine 15th-century Ponte del Diavolo leads to the church of S. Martino, which contains an altar of the 8th century with reliefs executed by order of the Lombard king Ratchis. At Cividale were born Paulus Diaconus, the historian of the Lombards in the time of Charlemagne, and the actress Adelaide Ristori (1822-1906).
The Roman town (a _municipium_) of Forum Iulii was founded either by Julius Caesar or by Augustus, no doubt at the same time as the construction of the Via Iulia Augusta, which passed through Utina (Udine) on its way north. After the decay of Aquileia and Iulium Carnicum (Zuglio) it became the chief town of the district of Friuli and gave its name to it. The patriarchs of Aquileia resided here from 773 to 1031, when they returned to Aquileia, and finally in 1238 removed to Udine. This last change of residence was the origin of the antagonism between Cividale and Udine, which was only terminated by their surrender to Venice in 1419 and 1420 respectively.
CIVILIS, CLAUDIUS, or more correctly, JULIUS, leader of the Batavian revolt against Rome (A.D. 69-70). He was twice imprisoned on a charge of rebellion, and narrowly escaped execution. During the disturbances that followed the death of Nero, he took up arms under pretence of siding with Vespasian and induced the inhabitants of his native country to rebel. The Batavians, who had rendered valuable aid under the early emperors, had been well treated in order to attach them to the cause of Rome. They were exempt from tribute, but were obliged to supply a large number of men for the army, and the burden of conscription and the oppressions of provincial governors were important incentives to revolt. The Batavians were immediately joined by several neighbouring German tribes, the most important of whom were the Frisians. The Roman garrisons near the Rhine were driven out, and twenty-four ships captured. Two legions under Mummius Lupercus were defeated at Castra Vetera (near the modern Xanten) and surrounded. Eight cohorts of Batavian veterans joined their countrymen, and the troops sent by Vespasian to the relief of Vetera threw in their lot with them. The result of these accessions to the forces of Civilis was a rising in Gaul. Hordeonius Flaccus was murdered by his troops (70), and the whole of the Roman forces were induced by two commanders of the Gallic auxiliaries--Julius Classicus and Julius Tutor--to revolt from Rome and join Civilis. The whole of Gaul thus practically declared itself independent, and the foundation of a new kingdom of Gaul was contemplated. The prophetess Velleda predicted the complete success of Civilis and the fall of the Roman Empire. But disputes broke out amongst the different tribes and rendered co-operation impossible; Vespasian, having successfully ended the civil war, called upon Civilis to lay down his arms, and on his refusal resolved to take strong measures for the suppression of the revolt. The arrival of Petillius Cerialis with a strong force awed the Gauls and mutinous troops into submission; Civilis was defeated at Augusta Treverorum (Trier, Trèves) and Vetera, and forced to withdraw to the island of the Batavians. He finally came to an agreement with Cerialis whereby his countrymen obtained certain advantages, and resumed amicable relations with Rome. From this time Civilis disappears from history.