Angulus

ANGULUS>（Ἀγγουλός : Eth. Angulanus), a city of the Vestini, mentioned both by Pliny and Ptolemy, as well as in the Itin. Ant. (p. 313), where the name is written Angelum, a corruption which appears to have early come into general use, and has given rise to a curious metamorphosis, the modern town retaining its ancient name as that of its patron saint: it is now called Civita Sant Angelo. It is situated on a hill, about 4 miles from the Adriatic, and S. of the river Matrinus ( la Piomba) which separated the Vestini from the territory of Adria and Picenum. The Itinerary erroneously places it S. of the Aternus, in which case it would have belonged to the Frentani. (Plin. Nat. 3.12. s. 17; Ptol. 3.1.59; Cluver. Ital. p. 751; Romanelli, vol. 3. p. 254.)
[E.H.B]