Denga - Boris Alexandrovich

Boris Alexandrovich ruled Tver from 1425 to 1461, a period during which the principality maintained genuine independence from both Moscow and Lithuania — a precarious balance he managed through calculated diplomacy, including the 1449 treaty with Vasily II of Moscow. Tver's coinage under Boris reflects a mint operating with real political autonomy, not a vassal's imitation workshop.

The denga weight standard here aligns with Tver's own reduced system, distinct from the Moscow norm.