He then relocated to Italy, then Berlin (where he studied Roman law and history), and subsequently Heidelberg where he studied art history under archaeologist Karl Friedrichs (1831-1871).
Ia kemudian pindah ke Italia, kemudian Berlin (di mana ia belajar hukum dan sejarah Romawi), dan Heidelberg di mana ia belajar sejarah seni bersama arkeolog Karl Friedrichs (1831-1871).