Rudolf Tönnies was an Austro-Hungarian and Yugoslav architect and politician (councillor of the Drava Banovina), son of the famous Swedish industrialist Gustav Tönnies.Together with the Czech Josip Pospišil and the Austrian Ernst Lichtblau, who had all studied at the Art Academy in Vienna with Karl von Hasenauer and Otto Wagner, Tönnies is considered one of the proponents of the "Bosnian style" as a step towards architectural modernism in Bosnia and Herzegovina, as opposed to Moorish Revival style