Wu's rival state, Cao Wei. He planned to personally lead an army to attack Gongsun Yuan. Lu Mao wrote a memorial to Sun Quan to dissuade him from launching the campaign, in which he explained the perils of travelling far to attack a distant enemy and pointed out some negative consequences that may result from the campaign, such as the Shanyue tribes taking advantage of Sun Quan's absence to cause trouble in the Wu region. Sun Quan disagreed with Lu Mao. Lu Mao then wrote another memorial to Sun Quan, advising him to refrain from attacking Gongsun Yuan, and focus on maintaining stability in Wu and making long term defence preparations instead. Sun Quan felt that Lu Mao was very sincere when he wrote the memorial so he abandoned the idea of attacking Gongsun Yuan. Wen Renmin (), a man from the same hometown as Lu Mao, once visited the Wu capital. He received a grand reception that was even better than that normally received by nobles. Lu Mao thought that this was inappropriate according to Confucian rules of propriety because he believed the level of the reception should be based on the person's social status. He was proven right later. He died in 239. Family and relatives Lu Mao's elder brother, Lu Xun, was a prominent general and politician in Eastern Wu. He held office for about a year as the third Imperial Chancellor of Wu before his death in 245. As Lu Xun and Lu Mao were orphaned when they were young, they were raised by their granduncle Lu Kang, who served as the Administrator () of Lujiang Commandery () in the late Eastern Han dynasty. Lu Kang's son, Lu Ji, was a scholar who served as an official under Wu's founding emperor, Sun Quan. Lu Ji was also one of the 24 Filial Exemplars. Lu Mao had at least three sons. There are no details about his first son in historical records. His second son was Lu Xi (), whose courtesy name was Gongzhong () or Wenzhong (). Lu Xi was known for being studious and sociable. He served as a Master of Writing in the Selection Bureau () and later in the Ministry of Personnel during the reign of the last Wu emperor, Sun Hao. After Wu was conquered by the Jin dynasty in 280, Lu Xi served in the Jin government as a Regular Mounted