This is La Mulata de Córdoba and she was a Afican Mexican healer and midwife
She was from the state of Veracruz, Mexico and born as a free woman around 1780 at a time when many African Mexican people were enslaved.
However, around the time she was born, Mexico or New Spain was still a colony of Spain.
She became quite well-known because of her deep knowledge of Mexican traditional medicine, remedies, the use of medicinal plants and herbs
After her arrest, she was taken to the Port of Veracruz and she was taken in chains where she was jailed for life in the Fortress of San Juan the Ulúa. There, she was accused with witchcraft.
One day she disappeared from the Fortress of San Juan the Ulúa. Since her disappearance was an embarrassment for Mexican authorities, a legend that reinforced the idea that she was a witch, made up in connection to her disappearance.