Roland and Cross have similarity to
France Vs Brittany
Roland is self explained to Roland The Knight
In my interpretation that Charlemagne loss his life from assassination.
And The War Of Franks and Cross still happening.
As the Franks changed it’s name to Roland Kingdom.
Cross is like connected to Brittany
(Cross 
)
Franks Vs Berton
(Also King Cross Weapon isFolly,
The word folly come from
the Old French folie (12th century), meaning “madness, stupidity, or foolish behavior”