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MEXICO - APRIL 20: The Mexican couple, painters Diego RIVERA and Frida KAHLO during a pause in the 'fake trial' of Leon TROTSKY. Diego RIVERA, a mural painter and militant in the Mexican Revolutionary Communist Patry had let TROTSKY stay at his home during his exile. (Photo by Keystone-France/Gamma-Keystone via Getty Images)

MEXICO - APRIL 20:  The Mexican couple, painters Diego RIVERA and Frida KAHLO during a pause in the 'fake trial' of Leon TROTSKY. Diego RIVERA, a mural painter and militant in the Mexican Revolutionary Communist Patry had let TROTSKY stay at his home during his exile.  (Photo by Keystone-France/Gamma-Keystone via Getty Images)