"one of Charlemagne's Paladins"

The Song of Roland
Public DomainThe Song of Roland - Credit: Suguri F
Paladin is a term used to refer to a knight belonging to the court of Charlemagne, King of the Franks.  The word is thought to have been first used in the ancient French epic, The Song of Roland.  It has now come to be used to describe any knight, such as the Knights of the Round Table in Arthurian legend.