2109 - MEDIEVAL EUROPE / OLD WORLD. ITALY. BERGAMO (Municipality). In the name of Emperor Frederick II, 13th–14th centuries. 4-denari grosso (mezzo grosso), 18 mm in diameter (1.34 g). Undated (1236–1250), Bergamo. FREDERI CVS IMPRT Draped and laureated bust of the emperor facing right / Centered above rocks, a building on three arches with a four-part gabled roof, flanked by two crenellated towers with four windows each; the entire building complex rests on an arcaded base, PGA MVM, with two crescent marks as a secondary mark. MIR 17 (R ) Biaggi 352. Rare. Attractive patina, slight edge wear, tiny drill mark, good to very fine.