[Nope. Ivar definitely wasn't letting go. He could be ridiculously stubborn sometimes, much like a certain other Viking sitting beside him.] Didn't they tell you when you came through the portal? People come from all times here. I came from your future in 816. [So the timeline matched up a little bit there in regards to Ragnar not having a kid ridiculously young.] As for my mother...she was your second wife.

[Should he have revealed that second part? Well, not clarifying it likely would have led to more questions, considering that Lagertha never had another child after Gyda.]