Introduction & nbsp; The former residence, also known as Sanxuan Hall, is located in Qinzhou City. Liu Yongfu made numerous military achievements in the Vietnam War against France and was appointed as the Commander in Chief of the Three Generals by the King of Vietnam. His former residence was named after him. Liu Yongfu (1837-1917), also known as Yuanting, was a native of Shangsi, Guangxi and a hired worker. In 1857, under the influence of the Taiping Heavenly Kingdom Revolution, he joined the Tiandihui Uprising Army. In 1864, the Black Flag Army was organized in Ande, Guishunzhou (now Jingxi). In the Sino French War, he led the Black Flag Army to resist the French aggressors and achieved victories such as the Battle of Luochi and the Battle of Zhiqiao. He also resisted the imperial edict to protect Taiwan and fought against the Japanese invaders. He was a famous patriotic soldier. San Xuan Tang is not only a patriotic education base, but also has high artistic value. It was built in 1891, covering an area of 22776 square meters and a building area of 5622.5 square meters. It has 119 rooms of various sizes, with exquisite materials, dignified and simple shapes, grand scale, and unique layout. The main house is divided into three parts, facing south from north. It is a Chinese style cylindrical tile roof. There are more than 100 paintings on the wall, including saints and heroes, civil and military generals and officials, colorful phoenix and cranes. The gold colored paintings are elegant and lifelike. They complement the carved beams and painted rafters, which has both the style of the late Qing Dynasty and national characteristics. Surrounded by high walled watchtowers, a square screen in front of the main house, and flowers, plants, and trees, it is an extraordinary, magnificent, and typical ancient building