John of Luxembourg-Ligny held the Archbishopric of Mainz from 1371 to 1373 under deeply contested circumstances — his election was disputed, and he never achieved full canonical recognition before his tenure collapsed. The Rhenish goldgulden type he issued follows the quadripartite alliance standard established by the 1354 Rhenish Monetary Union, which bound Mainz, Trier, Cologne, and the Palatinate to a common gold coinage weight and fineness. His issues are scarce simply because the episcopate was so brief and administratively turbulent.
John of Luxembourg-Ligny held the Archbishopric of Mainz from 1371 to 1373 under deeply contested circumstances — his election was disputed, and he never achieved full canonical recognition before his tenure collapsed. The Rhenish goldgulden type he issued follows the quadripartite alliance standard established by the 1354 Rhenish Monetary Union, which bound Mainz, Trier, Cologne, and the Palatinate to a common gold coinage weight and fineness. His issues are scarce simply because the episcopate was so brief and administratively turbulent.