The conflict between the Papacy and the German Empire during the seventh century AH / thirteenth century AD and its impact on the Crusader movement. Al-Adab Journal, [S. l.], v. 2, n. 139, p. 173–200, 2021. DOI: 10.31973/aj.v2i139.2620. Disponível em: https://aladabj.uobaghdad.edu.iq/index.php/aladabjournal/article/view/2620.. Acesso em: 1 jul. 2024.