Good question, because according to Voltaire it was neither Holy nor Roman nor an Empire.
I'll start with the easiest. It got to be called an empire because after the partition of Charlemagnes empire, there could still be only one emperor, not three. Eligible for the title were his sons and their successors: the king of Germany, the king of France and the King of Lotharingia. Eventually the kingdom of Lotharingia was divided between the other two, and after a number of elections "won" by the king of Germany, the king of France was not even considered. I don't know if this was ever formalized, tbh. The title of emperor is therefore a continuation of Charlemagnes imperial title. In reality, particularly later on, the "empire" was more of a collection of (nearly) independent principalities, duchies, counties.
The term Roman goes even further back. Both medieval European empires, Byzantium en the Holy Roman Empire, claimed to be the rightful continuation of the Roman Empire. Adding in the name Roman stresses that claim. Iirc, this was legitimized in the coronation of Charlemagne by the pope. Note that this was not just a matter of prestige. Being accepted as the successor to the Roman emperors gave a de jure claim to overlordship over all territories belonging to the Roman Empire, so from England to Armenia. Louis XIV warned his successor on his death bed against the aspirations of the Holy Roman Emperor. This is almost 1000 years later!
Holy stems from the claim to be the protector of the faith (Catholicism), and might have been a rightful claim when first used. However, by the 12th century it became clear in the Investiture Controversy that the Papacy and the Holy Roman Empire were at least as much rivals as they were allies. A few centuries later, a large part of the empire wasn't even catholic anymore. So far for that claim.
As for Voltaire's claim: he was probably on the spot. From the point of view of a French catholic the empire most certainly was not holy (Protestantism was by now the dominant religion in many German states), it was German, not Roman, and not an empire but a loose collection of states.
Frederick I considered Italy the center of a "holy empire". This was the origin of the name Holy Roman Empire.
The Holy Roman Empire followed the Byzantine Empire.
Charlemagne was not prepared for his coronation and may not have wanted to be crowned by the Pope. If the Pope had the power to crown Charlemagne king, the Pope might also have the right to remove the crown.
Charles V, Emperor of the Holy Roman Empire, who was also elected First King of Spain in 1516 with the name of Charles I King of Spain.
Charlemagne. real name was Carolous Magnus
Charlemagne
The Holy Roman Empire
The Holy Roman Empire followed the Byzantine Empire.
The Holy Roman Empire was also called Germany. Strictly speaking the two were not identical, as medieval people used the name Germany to mean places where German was spoken; some of these were not in the Holy Roman Empire and some parts of the Holy Roman Empire were not German speaking.
The only connection between the two was the name "Roman Empire" . The Roman empire was (mostly) pre-Christian and Mediterranean in culture, although absorbing other cultures in their expansion, while the "Holy" Roman empire was Germanic and Christian in culture.
He did not have an Empire name as such, however he wanted to try and recreate a bigger/better Holy Roman Empire with Adolf Hitler.
The Holy Roman Empire was actually in Germany and was named so by a pope after Charlemagne or Charles the Great conquered most of Europe and became Christan.The Roman Empire, from around 750 BC, began as a kingdom, then a republic, and finally an empire by around 30 BC, encompassing the entire region around the Mediterranean Sea, including as far west as Portugal and north to the British Isles, west surrounding the Black Sea to Armenia and Mesopotamia, to the south encompassed the northern coast of Africa and all of Egypt. Once Roman military conquest had been accomplished, Roman occupation establish the Latin language, legal system, and culture to these lands and was the origin of what is today referred to as "Western Culture".The Holy Roman Empire included Germany and the part of Italy ruled by Germany between 800 AD to around 1800. Charlemagne, King of the Franks (which was the territory formerly known as Gaul, approximately France and Germany of today) traveled to Rome, where Pope Leo III on Christmas day in 800, unexpectedly crowned him Emperor of the Romans. This put Charlemagne in direct competition with the Byzantine emperor in Constantinople. Charlemagne's empire included the Germanic empire and that part of Italy controlled by the Germans. From this point on, there is a constant power struggle between the Pope in Rome and the German empire which eventually leads to the decline in the power of the Catholic Church and the rise of Protestantism.
i don know
Charlemagne was crowned Emperor of the Roman People on December 25, 800 AD, by Pope Leo III, in St. Peter's Basilica, in Rome. His empire, however, is not usually considered the same as the Holy Roman Empire. Today, the empire of which he was crowned is usually called the Carolingian Empire. In the past, historians sometimes equated the Holy Roman Empire with the Carolingian Empire. Today, they are less likely to do that, and most commonly the first emperor of the Holy Roman Empire is counted as Otto I. According to this newer view, the Holy Roman Empire was not equal to the Carolingian Empire, but descended from it. I should point out that the facts of events are not being disputed, but rather what names should be used. Medieval people did not use the name Holy Roman Empire until long after both Charlemagne and Otto I were gone, and they never used the name Carolingian Empire at all.
The medieval empire in central Europe was the Holy Roman Empire.
There were a great many rebellions during the 1044 years of this empire.
Just the name tells you. It was Catholic and still is home to the Pope.
Who is "Frederick you"? I guess you mean one of the various emperors of the holy roman empire.