Martha Dix

Martha Dix (née Lindner; other married name Koch; July 19, 1895 – March 6, 1985) was a German gold- and silversmith who was the wife of the painter Otto Dix. She was portrayed many times by her husband from 1921 to 1933. A well-known double portrait of the couple appears in the photographer August Sander's portfolio People of the 20th Century (1925).