The son of the theologian Karl Rudolf Hagenbach studied physics and mathematics in Basel (with Rudolf Merian), Berlin (with Heinrich Wilhelm Dove and Heinrich Gustav Magnus), Geneva, Paris (with Jules Célestin Jamin) and obtained his Ph.D. in 1855 in Basel.
Karl Marx | Rudolf Nureyev | Rudolf Steiner | Karl Pilkington | Karl Lagerfeld | Karl G. Heider | Karl Rove | Karl Pearson | Karl May | Karl Liebknecht | Karl Friedrich Schinkel | Karl Dönitz | Rudolf Virchow | Karl Jenkins | Rudolf Hess | Karl Stefanovic | Rudolf II, Holy Roman Emperor | Karl Bodmer | Rudolf Kempe | Rudolf Hilferding | Rudolf | Karl Wilhelm Friedrich Schlegel | Karl Malone | Karl Wolf | Karl Valentin | Karl Popper | Karl Malden | Karl Kesel | Karl Barth | Rudolf Schwarz |