ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɪksti tˈuː hiː ɐksˈɛptᵻd ɐ sˈɪmɪlɚ pəzˈɪʃən ɪnðə jˌuːnɪvˈɜːsᵻɾi ʌv hˈæl, wˌɪtʃ hiː ɹˌɛpɹᵻzˈɛntᵻd ɪnðə pɹˈʌʃən hˈaʊs ʌv lˈɔːɹdz fɹʌm wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɪksti sˈɪks tə wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɛvənti θɹˈiː, wˌɛn hiː bɪkˌeɪm pɹəfˈɛsɚɹ ʌv ɹˈoʊmən ænd pɹˈʌʃən lˈɔː ɪnðə jˌuːnɪvˈɜːsᵻɾi ʌv bɜːlˈɪn.
In 1862 he accepted a similar position in the University of Halle, which he represented in the Prussian House of Lords from 1866 to 1873, when he became professor of Roman and Prussian law in the University of Berlin.