The original ESB novel said that Boba Fett wore the armor of "a group of evil warriors defeated by the Jedi Knights during the Clone Wars." They weren't called Mandalorians at the time. But I remember thinking it would be about Jedi knights fighting against Mandalorian clones. I like the fact that we got the opposite--Jedi knights fighting alongside Mandalorian clones, only to then be defeated and killed by them. It's subversive, in a way.