In Dark Souls 2, there is an NPC Invader called "Rhoy the Explorer". He is most well known for his offline invasion in the Grave of Saints, but his name, and likeness do appear in other areas of the game.
For example, in NG+, in No-Mans wharf on the boat just before the Flexile Sentry, you can be invaded by a Dark spirit that resembles Rhoy (he is wearing the visible Aurous Set, but I don't recall if he has the invisible weapons). Additionally there are other links to him, like "Rhoy's resting place" in the Shrine of Amana.
I think there are some other references to him, but I can't remember properly. So just who is he?