Adam of Bremen relates in his work Gesta Hammaburgensis Ecclesiae Pontificum (Deeds of Bishops of the Hamburg Church) that his son Anund Emundsson died when leading a Swedish attack against Terra Feminarum and the attack ended in Swedish defeat.
:"When Emund, the King of the Swedes (Sueones), had sent his son Anund to enlarge his powers, he arrived by sea to Woman Land (terram feminarum). The women immediately mixed poison to spring water and this way killed the king and his army. We have mentioned this earlier, and bishop Adalvard himself has assured us that this and the rest as well are true."