Ruoe Sizheng Mansion Ruins

　　On the eve of liberation, the most representative Tusi in Nujiang Prefecture were the Luo clan Tusi, Duan clan Tusi, and Cha clan Tusi. The Luo clan Tusi governed areas including Tuezhe Village in Lanping County, and was the earliest family in Nujiang to hold a hereditary position as Tusi Prefect. As early as 1384, the founding ancestor of the Luo clan Tusi, Luo Ke, was appointed by the Ming Emperor Hongwu as a fifth-rank Fengxun Doctor, hereditarily serving as the official magistrate of Lanzhou. The Duan clan Tusi governed areas such as Laowo, Liuku, Denggeng, and Daxing, all of which had established Tusi offices. The Cha clan Tusi governed areas including Luzhang and Pianma, also maintaining an office.

　　Tusi offices in Nujiang suffered varying degrees of destruction throughout different historical periods, and most no longer exist. The only relatively well-preserved site is the ruins of the Tusi office in Tuezhe, Lanping. The Lanping Tusi also had the longest lineage among Tusi in Nujiang, enduring through the Ming, Qing, and Republican periods for a total of 23 generations over more than 600 years. In 1998, the ruins of the Tuezhe Tusi office were designated as a provincial-level key cultural relics protection unit in Yunnan Province, with a protected area covering nearly 1,000 square meters.