Among the many unexpected interactions generated by postwar displacement and Catholic humanitarianism, the religious exchanges that developed between displaced Romanian fascists, Nazi collaborators, and war criminals, and the Catholic clergy that assisted them are particularly revealing of the agendas of both parties. This paper focuses on members of the Romanian fascist Legionary movement who, after the war, were assisted in Rome by Catholic and Greek Catholic clergy. It examines the religious and political agendas on both sides, showing how a sudden interest in Catholicism — and in some cases the conversion of ultra-Orthodox fascists to Catholicism — was closely connected to hopes of obtaining assistance for relocation to Argentina. The presentation further outlines the forms of religious devotion developed by some displaced Romanians as a deliberate strategy to construct ideological alignment with their rescuers' institutions, including the Vatican Secretariat of State. Finally, it demonstrates the extent to which such conversions and devotional practices influenced access to privileged assistance when compared with other displaced Romanians (fascists or not). Ultimately, the paper argues that while the displaced fascists were formally respected in their religious choices, some of the Catholic intermediaries clearly recognized that a combination of personal advantage and nationalist objectives laid at the heart of this religious mobilization. Documents from the Pius XII' pontificate archives in Rome and across Italy show that Catholic officials chose not to clarify these ambiguities, thereby allowing an element of proselytism to remain one of the implicit rationales of their charitable activities.