1 Horngroschen - Ernest, William III, and Albert Leipzig

This joint-rule issue reflects the unusual co-regency of the three Wettin brothers — Ernest, Albert, and William III — who governed Saxony together following the death of their father Frederick II in 1464. The arrangement was inherently unstable; within a decade, the brothers would begin carving up their inheritance, culminating in the 1485 Leipzig Partition that permanently split the Wettin dynasty into the Ernestine and Albertine branches. William III died before that division, in 1482, leaving Ernest and Albert to draw the line that would define Saxon politics for generations.