The eldest princess, Zhao Lingxi, was demoted to a fief by the emperor because she refused a political marriage. The land was barren and the people lived in poverty. Zhao Lingxi did not feel depressed, but relied on his extraordinary business acumen to develop local industries. She opened textile factories, porcelain factories, and opened trade routes to sell the specialties of the fiefdom to all parts of the country. The economy of the fiefdom gradually prospered, and the lives of the people also improved. Her success attracted the attention of the ministers in the DPRK. The ministers slandered the emperor one after another. Zhao Lingxi had to return to Beijing to defend herself, and finally got the emperor's approval.
