User blog comment:ClassicFan92/Theory on Irene/@comment-45.119.30.156-20160916224006

Irene Belserion could be Erza's Mother or Older Sister. It would not be possible for Erza Knightwalker to come to Earthland as Edolas has no magic left to power up the Anima. If you recall during the Magic games battle between her and Kagura, she mentions that she came from the same village as her and Simon. So perhaps Irene is a relative of Ezra, so Erza's real last name would be Erza Belserion.