1 Ducat - Clemens August of Bavaria

Clemens August of Bavaria held five simultaneous episcopal appointments at his peak — Cologne, Münster, Paderborn, Hildesheim, and the Teutonic Order — making him the most powerful ecclesiastical prince in the Holy Roman Empire and a consistent patron of Baroque excess. His Brühl residences, Augustusburg and Falkenlust, were under active construction through the 1750s, financed in part by the revenues of those accumulated sees. Ducats of this type circulated primarily in court and diplomatic transactions rather than common trade.

Clemens August died in 1761, and Cologne would not see another elector of comparable political reach.