Friedrich Nietzsche | Friedrich Schiller | Hans Zimmer | Friedrich Engels | Carl Friedrich Gauss | Karl Friedrich Schinkel | Friedrich Dürrenmatt | Friedrich Hayek | Caspar David Friedrich | Georg Wilhelm Friedrich Hegel | Friedrich Hölderlin | Friedrich Gustav Jakob Henle | Friedrich Ebert | Friedrich Wilhelm Joseph Schelling | Marion Zimmer Bradley | Karl Wilhelm Friedrich Schlegel | Friedrich Gulda | Friedrich Rückert | Friedrich Paulus | Johann Friedrich Böttger | Friedrich von Huene | Friedrich List | Friedrich | Christian Heinrich Friedrich Peters | Johann Friedrich Blumenbach | Friedrich Wilhelm Freiherr von Bülow | Friedrich Specht | Friedrich Schleiermacher | Friedrich Schlegel | Friedrich Karl Dörner |
While at Heidelberg, Brendel studied with the leading minds of his day: Franz Boll (1867-1924), Alfred von Domaszewski (1856-1927), Friedrich Karl von Duhn (1851-1930), Richard Carl Meister (1848-1912), and Eugen Täubler (1879-1953); the literary theorist Ernst Robert Curtius (1886-1956), Friedrich Gundolf (1880-1931), Karl Jaspers (1883-1969), the classical art historians Karl Lehmann and Friedrich Zimmer.