Does any other historical monarch other than Richard iii have a society dedicated to maintaining their reputation?

I have to say I’ve always been a bit bewildered by the Richard iii Society. They seem to be very adept at pointing (exaggerating?) out his strong points and either downplaying or totally ignoring his bad points. This is a man who has been dead for over 500 years, but society members seem to take any slight against him very personally.

Do any other monarchs have this cultish following or is it just Dicky iii? And why?