Fraternity of Chevalie (concept)
'The Fraternity of Chevalie' is the common term for the Marcher concept of brotherhood among Chevaliens. Often used as an insult for Marcher duplicity but seen as a great mark of pride by the Marchers themselves, the concept itself was popularized in the 9th century by the poet Abaël Venodau, whose eleven famous poems established the first proper concepts of Marcher unity in the literary tradition.
The concept itself is the belief that in dealings with foreigners, other Chevaliens should always come first. No matter what, if a foreigner means to do harm to Chevalie or its people, it is the duty of the Chevalien to stop them. This is most commonly seen in the constant collapse and reunification of the region, the Marchers happily battling one another until the rise of an outside threat, and then always rapidly reunifying until the threat is ended and they can safely go back to killing one another.