Big sister, little sister, red sister : three women at the heart of twentieth-century China / Jung Chang.

Enhanced descriptions from Syndetics:

They were the most famous women in China. As the country battled through a hundred years of wars, revolutions and seismic transformations, the three Soong sisters from Shanghai were at the center of power, and each of them left an indelible mark on history.

Red Sister, Ching-ling, married the 'Father of China', Sun Yat-sen, and rose to be Mao's vice-chair.
Little Sister, May-ling, became Madame Chiang Kai-shek, first lady of pre-Communist Nationalist China and a major political figure in her own right.
Big Sister, Ei-ling, became Chiang's unofficial main adviser - and made herself one of China's richest women.

Big Sister, Little Sister, Red Sister is a gripping story of love, war, intrigue, bravery, glamour and betrayal, which takes us on a sweeping journey from Canton to Hawaii to New York, from exiles' quarters in Japan and Berlin to secret meeting rooms in Moscow, and from the compounds of the Communist elite in Beijing to the corridors of power in democratic Taiwan. In a group biography that is by turns intimate and epic, Jung Chang reveals the lives of three extraordinary women who helped shape twentieth-century China.