From 1898 to 1903 Kathe taught at the Berlin School of Women Artists, and in 1910 began to create sculpture.
In 1914 her son Peter was killed in Flanders. The loss of Peter contributed to her socialist and pacifist political sympathies. In 1919 she worked on a commemorative woodcut dedicated to Karl Liebknecht, the revolutionary socialist murdered in 1919. Kathe believed that art should reflect the social conditions of the time and during the 1920s she produced a series of works reflecting her concern with the themes of war, poverty, working class life and the lives of ordinary women.
In 1932 the war memorial to her son Peter - The Parents - was dedicated at Vladslo military cemetery in Flanders. Kathe became the first woman to be elected to the Prussian Academy of Arts, but in 1933, when Hitler came to power, she was expelled from the Academy. In 1936 she was barred by the Nazis from exhibiting, her art was classified as 'degenerate' and her works were removed from galleries.
There is no artist's signature, no location in time or space - only the universal sadness of two aged people, surrounded by the dead like 'a flock of lost children'. The phrase is Kathe Kollwitz's own. The story of her struggle to commemorate her son's death testifies both to her humanity and to her achievement in creating a timeless memorial, a work of art of extraordinary power and feeling.
In the spring of 1945, Kollwitz knew she was dying.' War', she wrote in her last letter,