Which of the following emperors wrote the words "Han Xuxiu" on the plaque at the main entrance of the Summer Palace?

Gan Long

Qianlong was the fourth emperor of the Qing Dynasty in China. During his reign, he strongly supported cultural undertakings and made great achievements in calligraphy, painting and other artistic forms. The words "meaningful and beautiful" inscribed by Qianlong personally reflect Qianlong's praise for the Summer Palace, his love for garden art and his attention and admiration for this royal garden.