When I was a kid I watched a TV show (late 90s, early 00s). All I can remember was some stuff from the episodes that I watched. It was in English.
The TV show had a medieval setting with swords, shields, armor and other stuff from that period. Some of the main characters had "modern" outfits. There was war between the good guys and the bad guys. There was a villain, and when the good guys captured him he went insane.
The show also had magic, I think + some weird weapons and vehicles that were more Science Fiction.
Edit: it was a live-action show, not a cartoon. I don't remember any of the characters.