4 pieces. According to the information about the Laopo Lu family tree, we found that there are 4 branches in the Laopo Lu family tree. The "Revisiting Ju Zhi" published in the 25th year of the Republic of China confirmed the authenticity and reliability of the records in the "Lu Family Genealogy": Ruo Laopo branch was Yongzhong in his first life, and later divided into four branches, living in Houying, Nanguan and Chengcheng in the city. Dongxizhuang, Huaihe, Jishan, Kuoluopo, Mojiayi, Shanwang, Liangshankou, behind the temple in Rizhao County and other places have been passed down to the eighteenth century. Lu is a common surname in the eastern part of Junan County, Linyi City. There are many villages where people with the surname Lu live in villages such as Laopo and Pingshang.