How did Jesuit missions affect Indigenous communities in colonial Brazil?

In colonial Brazil, Jesuit missionaries played a complex role in the lives of Indigenous people. Arriving in the mid-16th century, they sought to convert Indigenous populations to Christianity and improve the moral standards of the colonists.12

To facilitate these goals, the Jesuits established aldeias (villages) where they settled converted Indigenous people. These missions provided a degree of protection from the widespread practice of slavery carried out by other Portuguese colonists, who frequently raided Indigenous communities for labor. This protection created significant tension, as colonists resented the Jesuits' control over a valuable labor supply.12

However, the impact of these missions was deeply destructive in other ways. While the Jesuits aimed to shield Indigenous groups from enslavement, the missions inadvertently contributed to the rapid spread of deadly European diseases among the inhabitants. Furthermore, the Jesuits' influence was limited by royal decrees, such as the 1574 mandate that allowed colonists to continue enslaving Indigenous people captured during so-called "legitimate warfare," even while granting the Jesuits authority over those within their aldeias.1