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There were vacancies in the appointments available in the estates (or offices) of two of Sun Quan's sons: Sun He, the Crown Prince and Sun Ba, the Prince of Lu. Many officials nominated their relatives to fill up these positions in the hope of building connections with the princes. When Quan Cong told Lu Xun about this, Lu Xun said that many of the nominated candidates were actually not up to standard. He argued that those officials were actually promoting nepotism and pursuing their own interests. He also worried that if those officials' relatives turned out to be incompetent, it could lead to serious problems in the administration. Lu Xun also foresaw that conflict was bound to break out between the two princes because they were equally influential and had their own factions supporting them. He believed that a power struggle between the princes would be detrimental to Eastern Wu's prosperity and stability. Quan Cong's son, Quan Ji (), became a close aide to Sun Ba and helped him in his fight against Sun He. Lu Xun wrote to Quan Cong to warn him: "If you don't learn from Ma Midi and choose to let (Quan) Ji have his way, you'll bring disaster upon yourself and your family." Quan Cong ignored Lu Xun's advice and their relationship became strained.