, Lagertha lived in the
Gaula valley in western Norway, marked on this map. Lagertha's tale is recorded in passages in the ninth book of the
Gesta Danorum, a twelfth-century work of Danish history by the Christian historian
Saxo Grammaticus. According to the
Gesta (¶ 9.4.1–9.4.11), Lagertha's career as a warrior began when
Frø, king of Sweden, invaded
Norway and killed the Norwegian king Siward. Frø put the women of the dead king's family into a brothel for
public humiliation. Hearing of this,
Ragnar Lodbrok came with an army to avenge his grandfather Siward. Many of the women Frø had ordered abused dressed themselves in men's clothing and fought on Ragnar's side. Chief among them, and key to Ragnar's victory, was Lagertha. Saxo recounts: Impressed with her courage, Ragnar courted her from afar. Lagertha feigned interest, and Ragnar arrived to seek her hand, bidding his companions wait in the
Gaular valley. He was set upon by a bear and a great hound which Lagertha had guarding her home, but killed the bear with his spear and choked the hound to death. Thus, he won the hand of Lagertha. According to Saxo, Ragnar had a son with her, Fridleif, as well as two daughters, whose names are not recorded. After returning to Denmark to fight a civil war, Ragnar (who, according to Saxo, was still annoyed that Lagertha had set beasts against him) divorced Lagertha to marry
Þóra borgarhjǫrtr, daughter of the
Herrauðr,
jarl of
Västergötland. He won the hand of his new love after numerous adventures, but upon returning to Denmark was again faced with a civil war. Ragnar sent to Norway for support, and Lagertha, who still loved him, came to his aid with 120 ships, according to Saxo. When at the height of the battle, Ragnar's son
Siward was wounded, Lagertha saved the day for Ragnar with a counter-attack: Upon returning to Norway, she quarrelled with her husband and slew him with a spearhead she concealed in her gown. Saxo concludes that she then "usurped the whole of his name and sovereignty; for this most presumptuous dame thought it pleasanter to rule without her husband than to share the throne with him". ==Scholarship==