, Ptol.; Αἰ̈διον
, Strab.; Eth. Aesinas
,--atis), a town of Umbria situated on the N. bank of the river of the same name, about 10 miles from its mouth.
It is still called Iesi,
and is an episcopal town of some consideration. Pliny mentions it only as an ordinary municipal town: but we learn from several inscriptions that it was a Roman colony, though the period when it attained this rank is unknown. (Inscrr. ap. Gruter. p. 446. 1, 2; Orelli, no. 3899, 3900; Zumpt, de Colon.
According to Pliny (Plin. Nat. 11.42
) it was noted for the excellence of its cheeses.
The form Aesium, which is found only in Strabo, is probably erroneous, Αἴσιονζζζ
being, according to Kramer, a corrupt reading for Ἀδίδιον.
(Strab. v. p.227
; Ptol. 3.1.53
; Plin. Nat. 3.14. 19