 In 1927 he was named "Kurator" of the University of Frankfurt, to which he attracted a distinguished faculty that included Ernst Kantorowicz, Adolph Lowe, Karl Mannheim, Paul Tillich, and Max Wertheimer.Riezler consequently played a crucial role in the 1930 inception of the Frankfurt School; for example, it was Riezler who recommended Herbert Marcuse to Max Horkheimer.Because of his concurrent appointment to the philosophy faculty, Riezler was also prominent in German philosophical circles.