Li Hongzhang, whose real name is getting better and better, is from Hefei. In the middle of the bustling pedestrian street in Hefei, Anhui Province, there is a typical residential building in Jianghuai area in the late Qing Dynasty, with neat layout and rigorous structure. This is the former residence of Li Hongzhang, an important military and political official in the late Qing Dynasty.
In fact, Li Hongzhang's ancestral surname was originally Xu, which was later used by the Li family, so he changed his surname to Li. These genealogies of the Xu family are recorded, and Li Hongzhang is the seventh generation descendant of the Li family. There was also the saying of "Xu Lijia" in Qing Dynasty. So, in order to avoid the confusion of blood, Li Hongzhang's family has such a rule that Xu and Li Er are not allowed to get married, and this rule has been strictly observed since the ancestors, and it must be observed from generation to generation.
However, their surnames intermarry with the surname Li outside the family, just like Li Hongzhang's mother's surname Li. In addition, in order to repay Xu Zu's kindness, Li Hongzhang and his brothers specially returned to their hometown and built a "gratitude shrine" for Xu's descendants in Caofang Village, Zhongxing Township, Hefei East, which later became the "Xu Ancestral Hall".