Grosso Agontano

Ancona's grosso agontano occupied an unusual commercial position: struck by a city-state whose port dominated Adriatic trade with the Byzantine east, it circulated widely across the Balkans and into the Levant precisely because Ancona maintained trading privileges with Constantinople long after most Italian communes had lost them. The type was explicitly modeled on the Venetian grosso but issued in deliberate economic competition with Venice, whose merchants resented Ancona's independent access to eastern markets.

Biaggi 34 places this among the earlier attributions of the series. Dating within the two-century window remains difficult due to limited documentary evidence tying specific die pairs to consular administrations.