The Lady of Yue, also known as the Maiden of the Southern Forest, was a renowned swordswoman who lived in the State of Yue during the reign of King Goujian of Yue (496-465 BCE). On the counsel of his advisors, Goujian contacted the Maiden of the Southern Forest, who visited him. He was so impressed with her swordsmanship that gave her the title of "Lady of Yue", and appointed her to train his army officers, who in turn, instructed his army.

Source

• "The Maiden of the Southern Forest – master swordswoman and military trainer"