was he an emperor?
Yes - he was the King of the Franks from 768, the King of the Lombards from 774, and the Emperor of the Romans from 800.
Charlemagne
Charlemagne (; ) or Charles the Great (2 April 748 – 28 January 814), numbered Charles I, was the King of the Franks from 768, the King of the Lombards from 774, and the Emperor of the Romans from 800. 
how many state do we have in germany 16 federal states what is the country called in its native language? UNANSWERABLE can you name some of the culinary specialities from here? Bratwursts and Weisswursts sausages; Sauerbraten how is the last one prepared? It is prepared most often with beef, but also from venison, lamb and mutton, pork and horse. Before cooking, the raw meat is marinated for three to ten days in a mixture of vinegar or wine, water, herbs, spices, and seasonings. what are the historical origins of this dish? Several sources believe sauerbraten was invented by Charlemagne in the 9th century AD as a means of using leftover roasted meat.
wiki:1585393
Charlemagne [SEP] Introduction
Charlemagne (; ) or Charles the Great (2 April 748 – 28 January 814), numbered Charles I, was the King of the Franks from 768, the King of the Lombards from 774, and the Emperor of the Romans from 800. During the Early Middle Ages, he united the majority of western and central Europe. He was the first recognised emperor to rule from western Europe since the fall of the Western Roman Empire around three centuries earlier. The expanded Frankish state that Charlemagne founded is called the Carolingian Empire. He was later canonised by Antipope Paschal III. Charlemagne was the eldest son of Pepin the Short and Bertrada of Laon, born before their canonical marriage.