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Mao Yuanxin (born 14 February 1941), also known as Li Shi, is a former Chinese politician. As the nephew of Chairman Mao Zedong, he acted as the liaison between Mao and the Communist Party's Central Committee in Mao's ailing years, when he was no longer able to regularly attend political functions. He was considered an ally to the radical political faction known as the Gang of Four. He was arrested soon after Mao's death after a political struggle ensued, and was sentenced to prison. Wikipedia