Answer :
The statement about Charlemagne that is not true is C. He refused to acknowledge the authority of the pope in Rome and establish his own church.
The Carolingian emperor was known among his contemporaries for being a blond, tall, corpulent man.
CarloMagno was King of the Franks and the Lombards.
The reign of Charlemagne reached its turning point at the end of the year 800. When the Pope was crowned Imperator Romanorum ('emperor of the Romans') in the basilica of St. Peter.
Charlemagne continued the policy of his father Pepin the Brief of alliance and defense of the Papacy.
The correct answer is C: He refused to recognize the authority of the pope in Rome and established his own church.