Luis Brandão
Rector of the Jesuit college at Luanda, who wrote in 1611 that the trade from Angola was seldom questioned, and preached against the injustice of some captives' enslavement.
How the Angola Trade Fed Cartagena
Alonso de Sandoval, On Restoring the Salvation of the Ethiopians (Seville, 1627; 2nd ed., Madrid, 1647), book 1, chapter 22 · first printed 1627; this text from the second edition, 1647 (events of about 1600–1620)
Lastimòme el caso, assombròme el numero que deuia de auer en Angola de negros de rescate, y de vnas en otras me vino a contar la causa de la muchedumbre presente, aun con auer libertado a muchos por respeto de lo que contra la injusticia de su cautiuerio predicaua publicamente el Padre Rector Luis Brandaon (cuya carta acabo de referir.)
The case grieved me, and I was astonished at how many Africans for sale there must be in Angola. One thing led to another, and he came to tell me the reason there were so many now. This was true even though many had been freed because of what the Father Rector, Luis Brandaon, whose letter I have just quoted, preached publicly against the injustice of their captivity.