Huh...you know, the black knight (man of african descent who is a knight) is an untapped genre (besides when it was done for comedy/absurdity). Not a black guy who sticks it to the man, or who references his blackness, or who winks at the camera, just a guy, raised as a squire, to be a knight errant of many realms, recognized and respected, nothing setting him apart as special or different, no uniqueness at all, just a normal guy, who happens to look different. He's got to be an orphan though, he has to have been raised by the other, or he'll be an outsider.
Closest we got was afro samurai, who was a samurai, not a knight