What groups of people were at the top, in the middle, and on the bottom of the social hierarchy in the spanish colonies?

"Peninsulares, people from Spain, were at the top of the social structure, followed by creoles, or people of Spanish descent born in the Americas. Mulattoes were people of mixed African and European descent, while mestizos were of mixed Indian and European descent; these groups were in the middle."

arresting and exicuting citizens