(b Berlin, 1858; d Florence, 1935).
German architectural historian and archaeologist. He attended the University of Berlin from 1876 to 1880 and studied archaeology with Ernst Curtius and Hans Jordan, classical philology with Emil Hübner and Johannes Vahlen, ancient history with Hans Droysen and Theodor Mommsen, and epigraphy with Johann Wilhelm Adolf Kirchhoff. In 1881 he went to Rome with the aid of a grant from the German Institute of Archaeology. From then on he devoted himself to the study of Rome from the point of view of epigraphy, topography, cartography and urban development. He was especially interested in studying the ways in which Renaissance artists approached the ancient monuments of Rome. From 1887 to 1909 Hülsen held the post of second secretary of the Institute in Rome, and he was an honorary professor at the University of Heidelberg.
Das Forum Romanum (Rome, 1904; Eng. trans., Rome, 1906, 2/1909) ‘La pianta di Roma dell’anonimo einsidlense’, Atti della Pontificia accademia romana di archeologia...