Queen of Denmark, Norway and Sweden, one of the greatest women in world history. When Margaret I, the actual ruler of Denmark and Norway, led her army into Sweden, the nobles met the queen with supreme loyalty and reverence and taken her as the Queen of Sweden. Seven years later, Margaret finally regained the three kingdoms and became the "Semiramis of the North". Margaret's ruling wisdom consists of two characters: Cruelty and Charity. She launched cruel wars to conquer the enemy, and won the support of the people with charity and piety. She never officially held any coronation, but she was the real "Uncrowned Queen" of Scandinavia. In 1397, the Kalmar Union, which changed the whole history of Scandinavia, was officially established. Denmark, Norway and Sweden solemnly swore their loyalty to Margaret I. After that, Margaret retired as the regent and crowned her foster son Eric. Margaret never had a finger in the pie again henceforth in the rest of her life.