Willigis was Archbishop of Mainz from 975 until his death as well as archchancellor of the Holy Roman Empire.
Saint Willigis and Provost Hartmann, 12th century depiction, Russian State Library
Bishop Willigis with Mainz Wheel, Nuremberg Chronicle, 1493
The Elector of Mainz was one of the seven Prince-electors of the Holy Roman Empire. As both the Archbishop of Mainz and the ruling prince of the Electorate of Mainz, the Elector of Mainz held a powerful position during the Middle Ages. The Archbishop-Elector was president of the electoral college, archchancellor of the empire, and the Primate of Germany as the papal legate north of the Alps, until the dissolution of the empire in 1806.
Albert, Cardinal Elector of Mainz at the foot of the Cross
Lothar Franz Schönborn, Elector of Mainz (1695-1729)
Old boundary stone showing the Wheel of Mainz (Mainzer Rad), the coat of arms of the Electorate