From publisher blurb:
Lion & Dragon is a Medieval Authentic OSR game. Until now, you only thought you were playing "medieval fantasy"!
With Lion & Dragon, the rules of the original tabletop RPG have been adapted to create a more historically authentic medieval experience, to reflect the grittier and yet more mythic world of a magical medieval Europe.
L&D includes new rules governing social class and materials on culture to help a GM craft a world that feels closer to the world of the 100-years war or the War of the Roses. It has a grittier and more dangerous feel to reflect the cheapness of life at the time. Also included are sections on medieval economics, law & justice, and chapters with monsters and magical items based on authentic medieval legends. Finally, a completely revamped magic system is based on actual grimoire-magic as the medieval magicians really envisioned it.