The archbishop of Cologne governs the Roman Catholic Archdiocese of Cologne in western North Rhine-Westphalia. Historically the archbishop ruled a state of the Holy Roman Empire and was ex officio one of the prince-electors, the elector of Cologne, from 1356 to 1801.
The "Seven Prince Electors" electing Henry, Count of Luxembourg as Henry VII, Holy Roman Emperor at Frankfurt on 27 November 1308. At far left is Heinrich II of Virneburg, Archbishop of Cologne. Codex Balduini Trevirorum, c. 1340)
Saint Engelbert II of Berg, Archbishop of Cologne
Image: Ruprecht von der Pfalz, Bischof von Köln
The prince-electors, pl. Kurfürsten, Czech: Kurfiřt, Latin: Princeps Elector) were the members of the electoral college that elected the ruler of the Holy Roman Empire.
Coats of arms representing the seven original electors with the figure of Germania. Original colours were vivid. Germania's gown was gold, not beige, and the blue-grey was purple. Also, the browns were painted as vivid red and the muted grey in Saxony's arms was a brilliant green.
Coats of arms of prince electors surround the Holy Roman Emperor's; from flags book of Jacob Köbel (163#+1545). Left to right: Cologne, Bohemia, Brandenburg, Saxony, the Palatinate, Trier, Mainz