User blog comment:IamJakuhoRaikoben/Chapter 497: The Winter Mage, Review./@comment-184.178.44.233-20160810195824/@comment-25395791-20160817073415

Quite possible. At first I was thinking he might be another one of Irene's puppets, like Juliet or Heine, but having overlooked that "Lady Erza" detail, it rather hints that he is affiliated with Irene/Erza's family. Speaking of which, Erza Belserion :D