The Wenlan Pavilion was built in 1782 (47th year of the Qianlong reign of the Qing dynasty) and completed in the following year.[2] In 1853, Zhenjiang Wenzong Mansion and Yangzhou Wenhui Mansion were both destroyed by the Taiping Rebellion and were not restored after the war, but Wenlan Library collapsed in 1861 when the Taiping Army captured Hangzhou and was rebuilt in 1880. The Imperial Library is a typical Chinese garden in the centre of the West Lake.