Basically, like many officials, the so-called official family is to carry on the family line.
When you say Lu, it should be with.
Lv Mengzheng was the prime minister of the Song Dynasty several times. Lu, his ancestor, served as an assistant minister in the later Tang Dynasty. His father, Lu Guitu, was once the living lang of the later Zhou Dynasty; His son Lu Congjian, Dr. Guo Zi; Lu, the prince is in the middle; Lu, foreign minister of Simen; Lv Xingjian is a member of the Ministry of Foreign Affairs; Lu is also a doctor; Lu Jujian, Temple Cheng; Lu Zhijian praised the doctor for coming from Prince Edward Right. Lv Mengzheng's brother Lv Meng retired to the temple. [Uncle Lu Guixiang, Temple Zhongcheng, Zhizhou. Son Lv Mengheng went to Dali Temple and died. The second son, Lu Mengxun, is the foreign minister of the Ministry of Crisis; Lv Mengzhou and Li Chunhua are both scholars, and Lv Mengheng is from Lv Yijian. The second son, Lu Zongjian, is also a scholar. There are many famous people in Lv Mengzheng's younger generation, such as nephew Lv Yijian, grandnephew Lv Gongzhu, official prime minister, VIII Sun and Lv Zujian, all of whom are famous scholars in the Southern Song Dynasty.
But don't you find that there are many Li and Wang? Some family members do more and higher work than the Lu family.