Saseboro alone didn't find any information, but there was an official position called Densanshiro. It is recorded in Xuanshi Genealogy that Xuanyu Hall was named Deng Zuoshi Lang in Qing Dynasty.

1, this official position may have started from the Sui Dynasty.

2. In the Ming and Qing Dynasties, this official position was a title or title, and it was a virtual position rather than a real position.

Qing Xu Coe's Clear Notes-27, rank/

The fifth grade is called the official doctor, and the fifth grade is called the straight doctor, and the father gets it. Chengde Lang is a six-product, Scholar Lang is a six-product, the official is Xuandelang, and the father is sealed. The seventh level is Wen Linlang, and the official name is Xuandelang. Since the seventh grade, the official has been assistant minister and the father has sealed it. The right eight products are called "the post of repairing Lang". From the eight products, it is said that the father has a childish seal. Zhengjiupin said that he was an official, and from Jiupin said that he was an official, which gave his father a childish seal. So is this principle. Since it is a donation promotion, you can seal it according to the title, but please seal it if it exceeds the product. No inflow, no orders.