Yuan Tiangang was Li's teacher, and they were both knowledgeable advisors in the late Sui Dynasty. Yuan Tiangang once built a house in front of Panlong Mountain in Langzhou. Li Yin admired his name for a long time and came all the way with a piece of gold. His master's grave is unknown.
In Lijiadao Village, a town six miles northeast of Qishan County, there is a tomb of Li, an astronomer in the Tang Dynasty. Next to the tomb is Li Ancestral Hall, with three big tile houses facing south. Across the country, there are many so-called Li tombs: Henan Tongzhi thought it was in Xin 'an County; Jifu Tongzhi thought it was in Xiangyang in the northeast of Zhuozhou; Zhouzhi County Records thought that it was two miles outside the western suburbs of the county, but Xi Pacification Records said: "There is Feng Chun's tomb in the second suburbs of Zhouzhi"; "Qishan County Records" holds that "the tomb of male Li in Changle County in the Tang Dynasty is located in the northeast of Wuli, with a shrine next to it". Right or wrong, it is difficult to determine. However, in the past, people's compilation of records was often far-fetched, especially during the Qianlong period of the Qing Dynasty, Bi Qiufan helped Shaanxi and set up a monument for the Guanzhong Mausoleum to "correct its name". Facts have proved that there are many mistakes that lead to misinformation by future generations, just like Li's tomb. According to the textual research of Qishan County's literature and history data, in addition to the tombs in Xin 'an County, Henan Province and Zhuozhou County, Hebei Province, it is said that zhouzhi county's tomb was also on the Meiwuling near Shi Qiaocun in the south of the county in the 1960s, which set each other off in pairs with the Yohachi Tower. Unfortunately, it was destroyed during the Cultural Revolution. However, according to reliable information, the original tomb is square, 2 feet high and 3 feet wide, and there are no other ancillary buildings and tomb ornaments in the tomb area. In order to remember him, the locals called Meiwu Ridge Feng Chunling. The villagers of Lijiadao near Li's tomb in Qishan County all think that Li is their ancestor. 1962, a stone tablet was found in the ancestral hall of this village, which described its ethnic situation in great detail. There was also a case of Li Zu in the fifth year of Xianfeng (1855), on which Li Feng Chun was painted. There are many rumors and anecdotes about Li's mother and son among the local people, and all previous generations of Qishan County Records regarded Li as a rural sage.