1 Ban - Radu I jointly with Vladislav I

Radu I issued this coin jointly with his brother Vladislav I during a period of shared or contested authority in Wallachia, a political arrangement more common in the medieval Balkans than dynastic histories tend to acknowledge. The attribution to 1377 places it squarely within the broader struggle between Wallachia and the expanding Ottoman frontier, with the principality still nominally under Hungarian suzerainty. At 0.21 g, these tiny silver pieces were struck to a standard reflecting the thin silver resources available to a frontier principality.