Joan I of Blois inherited the county in 1279 following the death of her father, Hugh I, and ruled in her own name until her death in 1292 — one of the relatively few instances in medieval French feudal coinage where a countess issued currency under her own authority rather than that of a husband or male guardian. The billon content of these deniers is typically low, reflecting the broader degradation of feudal silver coinage across northern France during the second half of the thirteenth century.
Joan I of Blois inherited the county in 1279 following the death of her father, Hugh I, and ruled in her own name until her death in 1292 — one of the relatively few instances in medieval French feudal coinage where a countess issued currency under her own authority rather than that of a husband or male guardian. The billon content of these deniers is typically low, reflecting the broader degradation of feudal silver coinage across northern France during the second half of the thirteenth century.