Pope, if you make me king of the Franks, I will give you land and have my army protect the church
After a victory at war Clovis (Johnny Depp), soon followed by his army, converts to Christianity after seeing a cloud in the sky shaped like a cross. Clovis (Johnny Depp) becomes the first Christian king in the Frankish Kingdom.
You are now Christians
Charles Martel (Arnold Schwarzenegger) and the Franks defeat the Berbers in the 732 Battle of Tours. Martel was nicnamed "The Hammer" for his incredible physical strength and skill at war.
Pepin "The Short" (Stephen Colbert), son of Charles Martel, went to the pope and removed the current king and started a new dynasty. The Pope made him the king becase he offered to protect the church and give them land.
I shall split the empire evenly amongst the three of you. Charles the bald you will get the western area. Lothar you will get Italy, and Louis the German you will get Germany
Charles the Great "Charlemagne" (Brad Pitt) was a powerful Frankish ruler who conquered weaker Germanic tribes and spread Christianity through war. After conquering a Germanic tribe, Charlemagne (Brad Pitt) forces them to convert religions.
Roland, the nephew of Charlemagne, (Robert Downey Jr.) is a rear guard in the Frankish Amry. The army is attacked from behind by the Basques and Roland sacrifices his life to allow his soldiers to get help.
Louis the Pious was the son of Charlemagne and was a very religous man. He evenly split the empire between his three sons.