步騭
Zhou Yu's younger son, Zhou Yin (), married a woman from Sun Quan's clan. He served as the Commandant of Xingye () and was placed in command of 1,000 troops and garrisoned at Gong'an County. In 229, after Sun Quan became emperor, he granted Zhou Yin the title of a Marquis of a Chief District (). Zhou Yin was exiled to Luling Commandery (廬陵郡; around present-day Ji'an, Jiangxi) later for committing an offence. In 239, Zhuge Jin and Bu Zhi wrote a memorial to Sun Quan, requesting for Zhou Yin to be pardoned and restored of his marquis title and appointment on account of his father's contributions. Sun Quan was reluctant to do so, as he noted the severity of Zhou Yin's offence and said that Zhou Yin had not shown any sign of remorse. However, after much urging from Zhuge Jin, Bu Zhi, Zhu Ran and Quan Cong, Sun Quan eventually agreed, but Zhou Yin had died of illness in exile around the time when the pardon was issued.