Charles the Great is another name for Charlemagne, the famous ruler of the Franks. However, there are many other synonyms to describe this historically significant figure. He is often referred to as Charles I or Charles I of the Holy Roman Empire. Other popular titles include Charles the King, Charles the Great Emperor, and Charles the Frankish King. In certain regions, he is also known as Charles the Conqueror or the Father of Europe. Due to his tremendous influence on European history, Charlemagne has been given different titles and nicknames throughout the centuries, cementing his legacy in the annals of Western civilization.