Duke Eugen lahir di Bückeburg, Schaumburg-Lippe, anak kadua jeung putra kahiji Duke Eugen of Württemberg (1820<unk>1875), (putra Duke Eugen of Württemberg, jeung Putri Mathilde of Waldeck and Pyrmont) jeung pamajikanana, Putri Mathilde of Schaumburg-Lippe (1818<unk>1891), (putri George William, Pangeran Schaumburg-Lippe jeung Putri Ida of Waldeck and Pyrmont). Eugen digedékeun di Carlsruhe di Silesia. Anjeunna diajar di Universitas Tübingen. Patarosan: Dimana Duke Eugen tumuwuh nepi?
Carlsruhe