b. Vienna, July 23, 1885, d. Auschwitz concentration camp (Poland), Dec. 1942, legal scholar and politician (Social Democrat). 1919-1920 member of the Constituent National Assembly, 1920-1934 member of the Nationalrat, 1918-1927 member of the Vienna City Council, 1932-1934 financial expert for the City of Vienna. Rendered outstanding services in worker education, the youth movement and housing affairs, heavily involved in the 1931 Constitutional Law Amendment. Arrested in 1938, interned in Dachau, Buchenwald and Auschwitz concentration camps until his death.
Publications#Das sozial-demokratische Programm, 1910, 301926; K. Marx, 1913; Die Rekrutenschulen der internationen Sozial-Demokraten, 1914; Die sozial-demokratische Gemeinde-Verwaltung in Wien, 1925, 51930 (appeared 1929-1931 under the title "10 Jahre neues Wien").
Literature#L. Kane, R. D. Ein pragmatischer Idealist, 1980; J. Hindels, R. D. Gelebt fuer den Sozialismus, ermordet in Auschwitz, 1985.