Originally Posted by
Roogle
Ellone and Squall are not related by blood in any way, shape, or form. I think that there may be some confusing occurring from the fact that Ellone was raised by Raine; however, Ellone was only a foster child of Raine because her parents were killed when she was a child for refusing to give their child up to the government.
Laguna arranged for Ellone to be taken back to Raine after the events of the flashback in Esthar; soon after, Raine gave birth to Squall and passed away, and, subsequently, Ellone and the newborn Squall were sent to the orphanage.