1 Grosso - Francis Maria I Saint Crescentius

Francis Maria I della Rovere ruled Urbino through almost continuous crisis — expelled by Pope Leo X in 1516 and restored only after Leo's death in 1521, leaving the mint's output fragmented across interrupted periods of actual control. The grosso denomination itself was a northern Italian accounting staple by this point, but Urbino's issues were always small-series affairs given the duchy's limited economic weight relative to its cultural prestige.

CNI XIII records only a handful of die pairings for this type, reflecting genuine rarity rather than collector neglect.