Denga - Vasily Yaroslavich

Vasily Yaroslavich ruled Serpukhov-Borovsk as a loyal ally of the Muscovite grand princes through much of the dynastic war that consumed northeastern Rus' from the 1420s onward — but his end was abrupt. In 1456, Vasily II had him arrested and imprisoned at Uglich, where he died decades later, never released. His coinage effectively ends with that arrest, making the thirty-year span of this issue tightly bounded by political biography rather than natural attrition.

Serpukhov-Borovsk dengi of this period are frequently imitative of Muscovite types, a deliberate signal of subordination that complicates attribution without die study.