First English edition of the Nuremberg chronicle: being the Liber chronicarum of Dr. Hartmann Schedel…

Gregory (Gregorius) the Fifth was the first to order and establish the choice and election of a Roman emperor. For after Otto the Third, through inheritance, and yet, not without some effort, was elected emperor, and the said pope, born of the same lineage as Otto, recognized the weakness of the imperial sovereignty and the changes of fortune, therefore, in order that the highest authority of the empire might continue to abide with the Germans, he held a council and ordained a statute that it was proper for the Germans alone to elect a Roman Emperor. And from this point on the electors received the name. This same election has taken place for four hundred years since then; so that from this point onwards the imperial sovereignty did not descend by inheritable blood, but ever after solely through this election of an emperor by high-born Germans and the king of Bohemia. After receiving the imperial crown at Rome, the sovereign was to be crowned emperor and called Augustus. These (as the illustrations make clear) are the electors of the empire, namely, the three archbishops of Mainz, Treves and Cologne. Margrave of Brandenburg, Palsgrave, Duke of Saxony, and King of Bohemia. Each has a particular office; and so the three arch-chancellors are: the first, of Germany; the second, of Gaul; the third, of Italy. The Margrave of Brandenburg is the arch-chamberlain; the Palsgrave, arch-steward; the Duke of Saxony, arch-marshall. The King of Bohemia is an arch-cupbearer and casts the deciding vote in case the other electors do not agree in the election. This order and statute for imperial election was made around the Year of Christian Salvation one thousand.