Afaik practicly all(not literally) of native south america got wiped because of western diseases
So the spanish conquistadors blood is probably very mixed in their blood - plus I reckon most native women got raped once or twice back then, and probably did get one or two spanish blooddd children.
And btw: the beautifull south american women are only there because of the mix with european blood, afaik the natives where pretty god dang ugly. Or so i was told iirc.
Its the same with france - they produced one gorgeous famed women(i forgot her name but she was famed for heer beauty) - but most french women are god awefull ugly.