King Arthur: Knight's Tale.
I tried this and found it overly simplistic and easy with small party size and lacking customization.
I'm also not a fan of the grimdark style. Everyone says knights and chivalry are cliché but I can't think of a single property since
Excalibur that actually plays it straight. Everything is a subvsersion, everything is an 'alternate take.' No one really wants to do medieval romance like '
The Song of Roland', even 500 years ago Cervantes thought knights were a joke.
I want an unstoppable hero killing 1000 Saracens before falling on his sword. I want Orlando going insane and Astolfo flying a hippogriff to recover his wits from the moon. Basically I want something like
The Last Samurai for the west, that romanticizes the shit out of knights and chivalry. But no one even tries because they think it would be hokey and dumb. Maybe it's all Monty Python's fault, and this is an over correction.