If you are fluent in Spanish, here is a little gem of a game, loosely based on BRP.
It is called Aquelarre, and is described as the Demonic Medieval Role Playing game.
It's based on the early medieval period in the Iberian peninsula.
.: Aquelarre - El Juego de Rol Demoníaco Medieval :.
I'm not sure if it is still in print, but there is a strong fan base keeping it alive.