1 Goldgulden - Adolph I of Nassau

Adolph I of Nassau became Archbishop of Mainz in 1381 after a disputed election that required papal intervention to resolve, and his tenure was defined by constant friction with the Rhenish electoral princes over fiscal and territorial authority. The goldgulden issued under his name belonged to the broader Rhenish gulden convention — a monetary agreement among the four Rhenish electors, Mainz, Cologne, Trier, and the Count Palatine, who periodically standardized the weight and fineness of their gold coinage to maintain credibility in regional trade. Adolph's issues fall within the narrow window before his death in 1390.