 After studies in Hamburg and the Netherlands, he published a biography of Frederik Brekling in 1890.As a result of studies in Rome in 1894 and 1895, he wrote "De Avignonske Pavers Forhold til Danmark" (1896), concerning the relationship between the Avignon Papacy and Denmark, for which he obtained the doctorate.He also wrote "Det kristne Munkevæsen, dets Oprindelse og første Udvikling" (1901) and "Acta Pontificum Danica, 1316-78" volume I, (1904).