Gulden 'St. Jansgoudgulden' - Reinhold IV

Reinhold IV's tenure as Duke of Guelders was defined less by stable governance than by a prolonged dynastic struggle — he spent years contesting the duchy against his own brother, Willem, a conflict that consumed resources and periodically disrupted the administrative machinery of the mint at Arnhem. That the duchy continued producing gold coinage through this period is itself notable. The St. Jansgoudgulden type follows the Rhenish gulden standard adopted by the Quadruple Alliance of 1386, to which Guelders was a signatory, binding its gold to a shared weight and fineness regime alongside the archbishoprics of Mainz, Cologne, Trier, and the Palatinate.