Once a fierce warrior of a larger pack, Lagertha was content with her life, but over time things started to change. A choice had to be made when the brothers Rollo and Ragnar showed interest in her and that choice would determine how her life would continue, even if she didn't know it at the time.
Both males had something that drew her in, interested her. But in the end it was Ragnar who managed to claim her heart. Together they found happiness, much more than they ever thought. She stood by him in all the choices he made and so it eventually came down to them leaving the pack they had grown up in. Determined to make a living on their own they found themselves a beautiful territory to live in.
Eventually their own little pack started to grow and Lagertha happily lead it together with Ragnar since. But what she was most proud of wasn't her pack, but her children Bjorn and Gyda.