Aequi, also called Aeqnicoli and Aequiculani, an ancient warlike people of central Italy, dwelling in the mountainous region of N. E. Latiura, between Lake Fucinus (Lago di Celano) and the Anio (Tevcrone), surrounded by the Sa-bines, Marsi, Hernici, and Latins. They were among the most obstinate enemies of the early Romans, frighting them chiefly in alliance with the Volsci, a kindred people, and together with the latter were badly defeated by Camillus in 389 B. C. They suffered still more crushing defeats shortly before the close of the same century, when they were finally subdued. Mount Algidus, in the western part of their territory, was one of their natural strongholds, from which they made their incursions into thecountry around Rome.