In the colonial courtrooms of the Amazon, Indigenous voices did more than defend. They redefined the meaning of freedom. André Luís Bezerra Ferreira uncovers how Native communities used memory, kinship, and oral tradition as powerful legal tools to challenge colonial rule. Drawing from overlooked archives like the Livro de Assentos of the Junta das Missões, his work shows that Indigenous peoples were not passive subjects but active negotiators of law and status. Courts became spaces of struggle where terms like ‚captive‘, ‚slave‘, and ‚free‘ were constantly reinterpreted through Indigenous knowledge systems. Oral histories, rituals, and relational ties anchored claims to liberty and protection in a legal world built to exclude them.