Introduction to Xiaode Zhang's Mansion: Prince Qing's Mansion is also known as Xiaode Zhang's Mansion. It was built by Xiaode Zhang, the eunuch of the Qing Dynasty, and was later acquired by the fourth generation Qing Prince Zai Zhen. This building is a two-story building with brick and wood structure, with an open colonnade on the outside, combining Chinese and Western styles. It is currently the Foreign Affairs Office of Tianjin Municipal Government.