Sun Luban (fl. 229–258), courtesy name Dahu, was an imperial princess of the state of Eastern Wu during the Three Kingdoms period of China. She was the elder daughter of Sun Quan, the founding emperor of Wu, and his concubine Bu Lianshi. She is also a grand princess (長公主) a title given to the emperor's favorite daughter (or sister), and was also Princess Quan (全公主/全主) because of her marriage to Quan Cong.
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Early life and marriages
Sun Luban was the elder daughter of Sun Quan, the founding emperor of Eastern Wu, and his concubine Bu Lianshi. She had a younger sister, Sun Luyu. The sisters' courtesy names, Dahu (大虎) and Xiaohu (小虎), respectively mean "big tiger" and "small tiger". Sun Luban initially married Zhou Xun (周循), Zhou Yu's son, but Zhou Xun died early. In 229, she married again, this time to Quan Cong, a general serving under her father. Sun Luban had two sons with Quan Cong: Quan Yì (全懌) and Quan Wu (全吳).
Life during Sun Quan's reign
Sun Luban bore a grudge against Lady Wang, one of her father's concubines. She also disliked her half-brother, Sun He, who was born to Lady Wang. In 242, after Sun Quan designated Sun He as Crown Prince, he wanted to make Lady Wang the Empress. However, Sun Luban strongly objected and repeatedly spoke ill of Lady Wang in front of her father and managed to persuade him to drop the idea.