The Jewish orphans controversy was a dispute about the custody of thousands of Jewish children after the end of World War II. Some Jewish children had been baptized while in the care of Catholic institutions or individual Catholics during the war. Such baptisms allowed children to be identified as Catholics to avoid deportation and incarceration in concentration camps, and likely death in the Holocaust. After the end of hostilities, Catholic Church officials, either Pope Pius XII or other prelates, issued instructions for the treatment and disposition of such Jewish children, some but not all of whom were now orphans. The rules they established, the authority that issued those rules, and their application in specific cases is the subject of investigations by journalists and historians.