Katrana Prestor is a Lordaeron noble. (DF 148) She is also a royal councilor. (WoWMan 170) She is actually Deathwing's daughter, Onyxia in disguise. It was at Lady Prestor's behest that the young Anduin Wrynn be given the crown, so that order could be preserved within the Kingdom of Stormwind when the child's father, King Varian, went missing under suspicious circumstances while en route to a diplomatic summit at Theramore Isle. (WoWMan 170)