How did Charlemagne get his name?

Charlemagne is from French, and means Charles the Great. Charlemagne's name, at the time of his life, was represented in Latin as Carolus. His name comes form a Germanic Word that means "free man," and is represented in English by the Word "churl" and the German Word "Kerl," which means fellow. He was called "the great" because of his achievements and stature as a monarch.