2 Ducats - John III Sigismund

John Sigismund became Elector of Brandenburg in 1608 and spent much of his reign maneuvering for the Jülich-Cleves inheritance — a territorial dispute involving multiple Protestant and Catholic claimants that nearly triggered full European war years before the Thirty Years' War proper began. The 1615 date places this coin squarely within that crisis period, the same year the Treaty of Xanten nominally partitioned the disputed territories between Brandenburg and Neuburg, though neither side truly accepted the outcome.

Gold ducats of this weight and fineness from Brandenburg in this period were primarily instruments of diplomatic payment and inter-court transaction rather than everyday commerce.