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Kurt Schwitters
Kurt Hermann Eduard Karl Julius Schwitters (20 June 1887 – 8 January 1948) was a German artist who was born in Hanover, Germany.
Schwitters worked in several genres and media, including dadaism, constructivism, surrealism, poetry, sound, painting, sculpture, graphic design, typography, and what came to be known as installation art. He is most famous for his collages, called Merz Pictures.
Source: Wikipedia