Kroll was an internationally renowned classicist, owing to his research and, even more, his editorial work on a number of important publication, the biggest of which was the Realencyclopädie der Classischen Altertumswissenschaft.
Wilhelm II, German Emperor | Wilhelm II | Wilhelm Reich | Gottfried Wilhelm Leibniz | Georg Wilhelm Friedrich Hegel | Wilhelm Keitel | Friedrich Wilhelm Joseph Schelling | Wilhelm Furtwängler | Karl Wilhelm Friedrich Schlegel | Wilhelm Wundt | Wilhelm Sasnal | Wilhelm Kempff | Wilhelm Busch | Kroll Inc. | Wilhelm Westphal | Wilhelm von Knyphausen | Wilhelm von Bode | Wilhelm Steinitz | Wilhelm Schlenk | Wilhelm Heinrich Roscher | Wilhelm Gesenius | Wilhelm Canaris | Prince Wilhelm of Hesse-Philippsthal-Barchfeld | Friedrich Wilhelm Freiherr von Bülow | Franz Wilhelm Junghuhn | Carl Wilhelm Siemens | Wilhelm von Tegetthoff | Wilhelm von Schütz | Wilhelm von Humboldt | Wilhelm Solheim |