The Hall of Tombs

So I've got this room, the Hall of Tombs. And in it are a bunch of statues and frescoes and stuff, depicting "mighty heroes and great kings of old." The idea is to foreshadow some of the tomb sub-levels that I've got planned, and to play on that whole "connection to the Netherworld" idea, which otherwise hasn't seen a lot of play in this part of the dungeon.

Trouble is, I'm not sure who to put there. Zagyg (or some variation) is a given, and suggests a lot of ideas for said sub-level. Ozymandius is, for various reasons, another natural fit, and lets me do an Egyptian/classical world themed sub-level. I'm thinking some kind of Snake-related Sorcerer-Priest would be good, too, for ye olde snake-filled temple to an evil god, though I don't have a name picked out just yet. I've also considered doing one for Dave Arneson, but considering that he's not actually dead, it might be more tasteful to find another way to honor him in this project.

But I'd like at least a couple more, even just as red-herrings, to throw off players who work out the idea. Any real-world megadungeon contributors who deserve a spot? Or interesting historical or fictional references to make? Who would you put in something like this?