1 Groschen - Joachim I Nestor

Joachim I Nestor inherited Brandenburg in 1499 at age fifteen and spent much of his reign maneuvering against both the Habsburgs and the Reformation — he remained militantly Catholic while nearly every neighboring prince defected to Luther. His groschen issues of the 1510s reflect the broader north German monetary reorganization following the Reichsmünzordnung of 1500, which attempted to impose standardization across the fragmented imperial coinage system. Brandenburg's output during this window is modest, and MB#58 occupies a narrow five-year window that brackets the Reformation's opening salvos.