The difficulty of pinpointing Jon Stark's mother is only further increased by the fact that he was first seen in Winterfell and that by the time he ascended to the Winter Throne, most of Westeros had already been  badly ravaged by war.  According to Archmaester Perestan, the Northern Dragon's mother is one of the many unnamed dragonseeds left after the Targaryen rule. While no bastards were acknowledged after Daemon Blackfyre, House Targaryen continued siring them, and  most continued to procreate . Aerys himself was rumoured to have many a mistress-