12 Mariengroschen - Louis Rudolph

Louis Rudolph ruled Brunswick-Blankenburg from 1689 until his death in 1731, governing one of the smallest and most financially precarious of the Hanoverian duchies. The principality was carved out as an appanage for a junior branch of the House of Welf, and its independent coinage rights were exercised with a vigor that consistently outpaced its actual economic weight. The 12 Mariengroschen denomination was a workhorse of northern German commerce, valued at roughly half a Reichsthaler and widely accepted across the interoperating currencies of the Lower Saxon Circle.

Brunswick-Blankenburg's minting activity under Louis Rudolph was brief and geographically concentrated at Blankenburg itself. The relatively narrow five-year window of this issue reflects the duchy's limited resources rather than any policy shift.