>>8443059dude, i just posted a picture of Lord Soth, who wears a crown-ish thing on his head. He was created in 1987, based on death knights from D&D who were around since the earlier 80s... who are basically rip off of the Witch King and nazgul that were already mentioned.
Nevermind the barrow wights from LotR, who were probably kings too since they had tombs for themselves.
In short, you're a weeb who thinks Japan created it first.