Born from the ruins of the Roman Empire was the first core of the Holy Roman Empire.
Founded by Charlemagne, crowned emperor on Christmas Eve 800 in St. Peter's, it began to fragment completely with the death of Charlemagne, the last Carolingian, in 888.
In the Middle Ages it was considered the "superpower" of the time.
At its peak the Holy Roman Empire consisted of eastern France, all of Germany, northern Italy, and parts of western Poland.
Despite its small geographical size compared to other empires, its influence on the history of central Europe is still felt today.