Nice touch. I feel like you forgot some category - the pirates. In middle ages, some 2 millions of humans were stolen from the shores of the Mediterranean, from Slavic countries and transported to be sold on the slave markets of Ottoman Imperium. Even more, were stolen or just kid-napped from England to be enslaved in North America as the first slaves there. I can't really name those who were doing it, but those who amassed a fortune from doing this are still rich and known as well as their offspring.
@zeartul was one of the pirates here, but I guess there might have been others too.