>> Charlemagne, at least, earned his throne at the Battle of Pointers <<
I think it actually was his father, Charles Martel, who won at Poitiers.
Charles Martel was Charlemagne’s grandfather. Charlemagne’s father was Pippin/Pepin the Short, the first of the family to have the title of king rather than mayor of the palace.
Charles Magne was his grandfather
Ugghh. Charles Martel- or Charles the Hammer- was his grandfather