When Thor finds out Loki has secretly married Tony, he isn't particularly pleased, but not just for the reasons you would think. Turns out Loki has some news to share as well.
Odin found Laufey's child in the ruins of the temple, but it was not a boy he took that day, but a girl. He had in mind to marry her to Thor, but his plans were not to pass... All of this, because of a girl, Princess Loki's friend and lover, Sigyn.
Had Kang not interfered, this would have been Sylvie's timeline...