INTERNATIONAL TREATIES, LOCAL PRACTICE: the principle of devolution of slaves between the portuguese and spanish crowns at the end of the colonial period.

Abstract

this work intends to show how  the slave’s escape in the end of XVIII century raised discussions between the Iberian Crowns authorities in the river of the Plate. The respectives metropolis has slaves in his colonies, and we can see that the Crowns of Portugal and Spain signed deals and it’s important to consolidate different practices of devolution, especially after the Treat of Santo Ildefonso and the devolution of Colonia do Sacramento to the Spanish. In this case, our objective is demonstrate that the escapes are possible in one border porous and undefined that, at the same time, trying to establish the devolution were tested, but not always successful.