30 years of the sovereign’s life: from his youth to his engagements as a king, to his becoming aware thet he has unified Christian Europe.
Carlo is offered Saragozza’s throne, but it is his enemies’ trap. However, Saracens prevent Carlo from entering the town and force him to fall back.
To take revenge, his friend Orlando, set Pamplona city on fire, unleashing the anger of Basques who, during Roncesvalles’ battle kill all the Francs’ rearguard led by Orlando.
The king of Francs’ great merits towards christianity, leads him to be crown as Emperor of the Holy Roman Empire, a solemn event takes place that in S.Peter Sudare on Christmas day of 800 year.