The Moors were a regime not a race, when the moors were defeated they ceased to be, those are probably just slaves Portugal started the african slave trade and by the time they meet japan it was in full swing, Moors were medieval people they wasn't around those times of the slave trade lmao
it's like showing a picture of some cacs in japan and saying "these are romans depicted in japanense art"
Moors are absolutely not a race, but they were not solely a regime neither. It was a people constituted of black berbers and other Arabs of Middle-Eastern origin. It is definitely an ethnic marker. Consequently, a Moor doesn't cease to be one because he was defeated.
There are still Moors to this day in several countries of West Africa who descend directly from the Moors that were in Spain back in the day.
And even if we were to go by your definition of
Moor, reducing the term to its institutional umbrella, that wouldn't explain to me why you think the people depicted are traded African slaves and not descendants of the Moorish Empire.
The Moors didn't vanish after being defeated, they were converted to Christianism by decree of the Catholic Kings and continued to live in Spain. They only started to get evicted at the beginning of the XVIIth century, and that's after those paintings were made.
All in all, we know that they were still hundreds of thousands of Moors in Spain during all the XVIth century. That's why I find it odd that you consider unlikely that these were Moors, but very probable that these were traded West African slaves.
