History of China's most famous sisters. While the country went through difficult periods of wars, revolutions and dramatic transformations for a hundred years, the three Song sisters from Shanghai were at the center of power, and each of them left an indelible mark on history. Qingling's red sister married "ROC father" Sun Yat-sen, and after the fall of Chiang Kai-shek was Mao Zedong's deputy.