弘治帝
Construction of the present day structures started in the 1420s and 1430s. Significant expansions were undertaken in the year 1492, the fifth year in the reign of the Hongzhi Emperor. Other recorded renovations followed during the reigns of the Jiajing (1521–1567) and Wanli (1572–1620) Emperors of the Ming dynasty, the Jiaqing (1796–1820), Daoguang (1820–1850), and Tongzhi (1861–1875) Emperors of the Qing dynasty, as well as during the early Republican era.