Originally posted by Bardock42
Well, I suppose technically we don't know if hes dead, undead or what, but in essence yeah, drawn out over a long time after Oberyn poisoned him.In the show it was sort of hinted at as well.
His head was cut off and shipped to Dorne, right? Strongly suggest that Gregor died before Qyburn turned him into a super-zombie with alchemy.
edit: Nevermind, thought you were taking about the book to TI.