Mao's wife and the Gang of Four is a good shot, but earlier Rosa Luxemburg is your gal. Now no way is Germany's revolt going to work, so look else where. Soviet Union seems out given a German, and a woman no less seeking power in a strange land. So we come to Hungary which could work if you get Bela Kun to accept her into his circle.
So just a rough idea...
Rosa Luxemburg after deciding that despite the conditions a revolt would not work given how quickly soldiers, and not people rallied to defend the nation after the sailor revolt, and the government reactions to revolution in November 1918, called for a movement to Russia to help her brothers create a Communist Utopia, despite critizing the October Revolution. So she and a 1/3 of the Spartacus League started their journey to Russia. Due to travel issues they had to go to the Black Sea nad then get a boat and go into Russia itself instea dof just a train through Poland.
They found themselves in Hungary around March 1919 and just in time for the Hungarian Soviet Republic to be formed. Quickly changing plans Rosa decided to stay in hungary and work with the Kun government. Kun accepted Rosa into his ranks for she was a good speaker, had a sharp mind, and he felt he could easily sway her to his thinking as a good propaganda tool. Rosa however quickly had a following with her calls for a moderate transition working to make the people happy as the government formed. When Kun discovered she had invited various of her German counterparts into the antion he was somewhat angry.
Rosa oversaw German and Hungarian communists build up the frame work of a government and more often then not publically disagree with what Kun said. In May Bela Kun wanted to invade southern Czechoslovakia and set up a new Soviet state, however Rosa forced him to take the matter to the Revolutionary Governing Council and demanded such war plans end. Kun refused and much to his shock found the council voting against his actions. His mobile police force "The Lenin Boys" did not follow his call to rid the nation of Rosa Luxemburg as they had been trained by ex-Germans, and much of the Red Guard had a German influence in it.
So by June 1919 Rosa Luxemburg was named the Chairman of the Hungarian Soviet Republic. By making treaties with Yugoslovia, and Czechoslovakia Rosa was able to ease the tension for the nation. This spread out to Poland, and the only nation against it was Romania which tried a direct invasion in September, but found it had struck too late and the Red Guard had almost five months of training under their belt, and many veterans willing to fight for the nation.
In 1920 Rosa arrested all former former political party members, and many former military leaders after failed anti-communist coup. Hungary was getting moderate aid from the Soviet Union and seemed to be safe in its position in Europe but the coup seeme dto frighten Rosa who did not see people agaisnt communism, but outside influences. So her own version of Red Terror came down on Hungary ending with mass arrests, forced labor on many of the state improvement projects she desired, and a few thousand murders. She died at the age of 54 in 1924 leaving the Hungarian Soviet Republic with a vacuum for leadership.