Li Yuan 李渊 (566-635 CE) excelled at horse-riding, archery, and calligraphy as a young man. He was to be the future founder (reigned 618-626 CE) of the Tang dynasty (618-907 CE). Miss Dou was exceptionally smart and her father Dou Yi 窦毅, the governor of Dingzhou, was very particular about the quality of his future son-in-...