Just like the title states, I am curious if Charlemagne took on a baptismal name.
Very little is known about the childhood of Charlemagne. There is no reason to believe that he was not baptized with any other name than that of Charles (Karl). In fact, we are not even sure as where he was born.
Charlemagne’s Early Years
Charlemagne was born around 742, the son of Bertrada of Laon (d.783) and Pepin the Short (d.768), who became king of the Franks in 751. Charlemagne’s exact birthplace is unknown, although historians have suggested Liege in present-day Belgium and Aachen in modern-day Germany as possible locations. Similarly, little is known about the future ruler’s childhood and education, although as an adult, he displayed a talent for languages and could speak Latin and understand Greek, among other languages. - Charlemagne