Analysis:

Wen Yuan Pavilion is located in the southeast of the Hall of Supreme Harmony in the Forbidden City, in the northwest of Donghuamen, behind the Wenhua Hall. It was built in the 40th year of Qingganlong (1775) and collected by the Palace Museum.

Wenyuan Pavilion, located in the Yuanmingyuan, was built in the 40th year of Qianlong (1775) and caught fire in the 10th year of Xianfeng (1860) when Eight-Nation Alliance invaded.

Wenjinge is located at the foot of the northwest plain of the Summer Resort (now Chengde City, Hebei Province). It was built in the thirty-ninth year of Qianlong (1774), and its collection was transported to Beijing in 19 15, and now it belongs to Beijing Library.

Wenshui Pavilion, located on the west side of the Forbidden City in Shenyang, Liaoning Province, was built in the forty-seventh year of Qianlong (1782). It is the most complete and least lost among the seven libraries, and now it belongs to Liaoning Provincial Library.

Wenhui Pavilion is located in Daguantang, Jiangdu County, Jiangsu Province (now Yangzhou City). It was built in forty-five years of Qianlong (1780) and destroyed by fire in four years of Xianfeng (1854).

Wen Cong Pavilion is located in Jinshan Temple, Zhenjiang City, Jiangsu Province. It was built in the forty-fourth year of Qianlong (1779) and destroyed by fire in the third year of Xianfeng (1853).

Wenlan Pavilion is located at the southern foot of Gushan Mountain in West Lake, Hangzhou. It is the only one of the three pavilions in Jiangsu and Zhejiang. Founded in the forty-seventh year of Qianlong (1782), it was destroyed in the eleventh year of Xianfeng (186 1), and some books were lost. It was rebuilt in the sixth year of Guangxu (1880) and now belongs to Zhejiang Library.