In 1927, Malevich traveled to Warsaw where he was given a hero's welcome. There, he met with artists and former students Władysław Strzemiński and Katarzyna Kobro, whose own movement, Unism, was highly influenced by Malevich. He held his first foreign exhibit in the Hotel Polonia Palace. From there, the painter ventured on to Berlin and Munich for a retrospective which finally brought him international recognition. He arranged to leave most of the paintings behind when he returned to the Soviet Union. Malevich's assumption that a shifting in the attitudes of the Soviet authorities toward the modernist art movement would take place after the death of Vladimir Lenin and Leon Trotsky's fall from power was proven correct in a couple of years, when the government of Joseph Stalin turned against forms of abstraction, considering them a type of "bourgeois" art, that could not express social realities. As a consequence, many of his works were confiscated and he was banned from creating and exhibiting similar art.