1 Guldenthaler - Ferdinand I

Ferdinand I issued this Guldenthaler through his authority over the Habsburg lands of Upper Alsace — a jurisdiction that rarely produced its own coinage independently of the broader Habsburg minting apparatus. By 1563, Ferdinand was in the final year of his reign as Holy Roman Emperor, and the short two-year window for this type likely reflects the administrative disruption surrounding his death in July 1564 and the subsequent partition of Habsburg territories among his sons.

Markl's three-variant numbering (1920–1922) suggests minor die differences across the run, though the type as a whole is scarce by any measure.