This book combines classics, maps and historical pictures to introduce the relationship between the five emperors from Yongzheng to Xianfeng and the Old Summer Palace, covering history, gardens, art and other fields. Among them, Yongzheng and Daoguang died in the Old Summer Palace, while Jiaqing and Xianfeng were born in the Old Summer Palace. The major events that occurred in the Old Summer Palace and influenced the modern history of China tell the story of the rise and fall of the Qing Dynasty from a special perspective; the stories in the lives of the emperors are colorful, turbulent, and thought-provoking. The Old Summer Palace is such a historical witness.