You know, at the risk of revealing my overarching gaming nerdiness, I noticed similar arming pieces on Crusader knights in the first game of Assassin's Creed...instead of curving around the shoulder like an espalier, these were flat and looked to be of a hardened leather or steel. I know, I know, just a game, but they got their inspiration from somewhere, I prefer to believe it to have been somewhat historically accurate with regard to armor, weapons and styles of dress. Plus, the guidebook had large illustrations so I was able to get a good look, so to speak. Anyone else play it? It is still one of my most favorite games of all time; from time to time I'll plug it in just to go a-hunting in the Holy Land!
I never knew what they were called, though.