Elly Oehler Sonnenschein was a Czech functionalist architect who worked in collaboration with her husband Oskar Oehler. She was a daughter of the director of the Ostrava steelworks, Engineer Viktor Sonnenschein (1873-1942). She studied architecture at the German Technical University in Brno. In 1931 she married his classmate, Oskar Oehler, between 1932 and 1939 they had an independent office in Prague. For his Jewish origin he wanted to escape to Australia in 1939. But the attempt was unsuccessful. They were imprisoned in Munich and Berlin. In 1944 he was deported to the Theresienstadt concentration camp. After the war the couple moved to Ostrava and changed its name to Olar. In 1949 she moved to Prague.