On that point, I think he's not guilty. I can't remember the chapter, but at one point he in conversation to another character states that he never gave the order - but he never gave the order not to kill the children: it just never occurred to him. Obviously, having made the choice of employing the henchmen that he does, what came after could not be a complete surprise to him, but it was a glaring act of omission on his part, rather than willingly ordering the deaths of children. This doesn't redeem him, since he uses the dead children to gain favour with Robert, and that he simply never though about giving such detailed orders to those ravaging the castle, however he does seem to show some genuine regret (not remorse) that they died.
-- EDIT: -- (replies from BM and ABM)
apparently he did, it was Elia he forgot about. -- Although I was under the impression that there was little in the way of orders at all, and though Aegon may have been intentional, Rhaenys and Elia were oversights... maybe someone can provide me with a quote?
Well, the man's just a teensy bit more ruthless than I thought, but hey. He's still an awesome character.
Edited by The Taupe Grace, 07 May 2012 - 07:59 PM.