Sentence:  Gage noted the clothing of the slaves of the Spanish nobles, and silk was common to them. "The gentlemen have their train of <WSD>blackamoor</WSD> slaves, some a dozen, some half a dozen, waiting on them, in brave and gallant liveries, heavy with gold and silver lace, with silk stockings on their black legs, and roses on their feet, and swords by their sides." 
Meaning of the word marked with <WSD> tags:  A person with dark skin, especially (but not necessarily) one from northern Africa