24 Mariengroschen / ⅔ Thaler - Charles II

The 24 Mariengroschen denomination was a persistent accounting relic in Lower Saxon coinage, rooted in the old Mariengroschen unit that had circulated across the Harz region since the late medieval period. By Charles II's reign in Brunswick-Wolfenbüttel, it survived largely because local trade networks — particularly grain and timber commerce with Hanover and the smaller Westphalian states — still conducted ledger entries in the old unit. The dual designation with ⅔ Thaler reflects the ongoing friction between traditional regional reckoning and the broader North German monetary conventions pressing for standardization.

Charles II's reign was itself politically fraught. He was deposed by his own subjects in 1830, just one year after this series ended.