Saxo Grammaticus

“For the valour of a youth will often kindle a maid, and the courage of those whose looks are not so winning is often acceptable.”
― Grammaticus Saxo, The Danish History, Books I-IX

“He was succeeded on the throne by RAGNAR. At this time Fro (Frey?), the King of Sweden, after slaying Siward, the King of the Norwegians, put the wives of Siward's kinsfolk in bonds in a brothel, and delivered them to public outrage. When Ragnar heard of this, he went to Norway to avenge his grandfather. As he came, many of the matrons, who had either suffered insult to their persons or feared imminent peril to their chastity, hastened eagerly to his camp in male attire, declaring that they would prefer death to outrage. Nor did Ragnar, who was to punish this reproach upon the women, scorn to use against the author of the infamy the help of those whose shame he had come to avenge. Among them was Ladgerda, a skilled amazon, who, though a maiden, had the courage of a man, and fought in front among the bravest with her hair loose over her shoulders. All-marvelled at her matchless deeds, for her locks flying down her back betrayed that she was a woman.”
― Grammaticus Saxo, The Danish History, Books I-IX