983 royal election

[6][7] In the words of Thietmar, "the emperor's son was elected lord by all" (filius inperatoris ab omnibus in dominum eligitur).

[8] Although its main purpose was the election of Otto III as co-ruler, the diet dealt with other matters as well.

[2] It was the only election held in Italy in the history of the Holy Roman Empire and the only one with substantial Italian participation.

[9] The events of 983 suggest that Otto II's policy was to unify the German and Italian kingdoms into a single empire.

Otto III was consecrated and crowned at Aachen on 25 December 983 by Archbishops Willigis of Mainz and John X of Ravenna in a joint German–Italian ceremony.