Jarl Borg didn't seem to bring any of his peasants with him to Kattegat, only his warriors and his wife, so where is his original jarldom? Did he leave that town unprotected? I'd suggest Ragnar raid that town for its grain stores, but that would make the innocent suffer along with the Jarl.
I can't blame Aslaug completely and give Ragnar a pass for the situation. It took both of them to create the mess. Aslaug wanted the father of their child to take care of him. That said, I too loved how everyone greeted Lagertha so warmly and ignored the princess. And I loved, loved the Seer asking Ragnar what made him think the choice was his. Good advice for anyone involved with more than one person.
Athelstan better stop inhaling the incense. Some serious hallucinations there.