Asia or Europe,most likely Russia
Answer:
Charlemagne emperor
Explanation:
As a way to acknowledge Charlemagne's power and reinforce his relationship with the church, Pope Leo III crowned Charlemagne emperor of the Romans on December 25, 800, at St. Peter's Basilica in Rome. As emperor, Charlemagne proved to be a talented diplomat and able administrator of the vast area he controlled.Nov
In germany it was called Wandel durch Annäherung
They Made a contract called Grundlagenvertrag