Mainz

The Archbishopric of Mainz was an ecclesiastical principality on the Rhine, with lands reaching as far as Erfurt. In 1337 Archbishop Henry III of Virneburg held the see after a disputed election and supported Emperor Louis IV.

Pope Clement VI deposed Henry in 1346, and the Golden Bull confirmed Mainz's electoral precedence in 1356. During the diocesan feud, Archbishop Adolf of Nassau stormed Mainz in 1462 and curtailed its liberties. The electorate remained Catholic through the Reformation and was dissolved in 1803; Archbishop Dalberg retained Aschaffenburg while its other lands were divided.