Perhaps Ms Laila Lalami or some other person, could wrote about the Black Conquistadors. One was a slave, but had tremendous agency, and got very wealthy he was a slave on paper only, he was in fact an accountant an administrator and a captain of men. The others was not Slaves, but who traveled to Spain to become Conquistadors , the most colorful one , was self named Juan Garrido or handsome John, from the kingdom of the Kongo, who served with Cortez in the Caribbean and Mexico, very wealthy, demanded his share of native slaves, and payment from the crown, in this he was as fully a committed imperialist as his fellow Conquistadors, whom he built a place of worship in honor of his fallen compatriots. Then there was Yasuke, an African captured as a child taken to Arabia, educated, then to India turned into a soldier for Indian warlord, got his freedom, and became a sell sword bodyguard to Portuguese missionaries ,end up in feudal Japan, became a Samurai for a butcher called Oda Nobunaga. That period for African diasporean males is filled with contradictions.