Wer datete Irene Altman?

Otto Mueller (* 16. Oktober 1874 in Liebau, Landkreis Landeshut, Provinz Schlesien; † 24. September 1930 in Obernigk, Landkreis Trebnitz, Provinz Niederschlesien) war ein deutscher Maler und Lithograf des Expressionismus. Er gehörte der Künstlergruppe „Brücke“ an und gilt als einer der bedeutendsten Expressionisten.

Ernst Ludwig Kirchner (6 May 1880 – 15 June 1938) was a German expressionist painter and printmaker. He was one of the founders of the artists group Die Brücke or "The Bridge", a key group leading to the foundation of Expressionism in 20th-century art. Kirchner volunteered for army service in the First World War, but soon suffered a breakdown and was discharged. His work was branded as "degenerate" by the Nazis in 1933, and in 1937 more than 600 of his works were sold or destroyed.