(now Ferentino), in Ancient Geography, a city of Etruria, on the northern slope of the Ciminiian hills, about five miles from Viterbo, and the same distance from the banks of the Tiber. It is only noted as the birthplace of the Emperor Otho, and as possessing a very old and splendid temple of Fortune.

(now Ferentino), in Ancient Geography, a city of the Hernici, about 48 miles from Rome, in a S.E. direction on the side of a hill rising immediately on the left of the Via Latina. It appears to have been at one time a Volscian city, but soon after the defeat of that people by the Romans in B.C. 413 it was made over with the adjoining territory to the Hernici. In the war which this latter people waged with the Romans in B.C. 361 it was taken by the Roman consuls, but so leniently dealt with, that when the Hernici rebelled for the third and last time, Ferentinum was one of the three Hernician cities that refused to join the revolt. In consideration of this they were allowed by the conquerors to retain their own laws, which they preferred to the Roman code. After the social war, however, the Ferentines accepted the franchise. The ancient remains at Ferentino possess considerable interest. They consist chiefly of the old walls built somewhat in the cyclopean style, a kind of citadel on the top of the hill, on which the cathedral now stands, and various other portions of Roman buildings.