VOGHERA (anc. Iria)  , a town of Lombardy, Italy, in the province of Pavia, and 19 M. by rail S.S.W. of that city, 305 ft. above sea-level, on the Staffora (a tributary of the Po) . Pop . (1901) 14,453 (town); 20,442 (commune) . The fortifications erected by the Visconti in the middle ages have given place to shady promenades . The large church of San Lorenzo dates from the 11th century, but was remodelled in the baroque style about the beginning of the 17th . The suppressed church of S . Ilario (Chiesa Rossa), so called from the red colour of the brick of which it is built, dates from the loth century . The neighbourhood produces much silk, in which, as well as in corn and wine, an active trade is carried on . The ancient Iria took its name from the river on which it was situated . It was on the road from Placentia to Dertona, and was made a colony by Augustus (colonia Forum Iulium Iriensium) .