She was born circa 1744. Her father was Jose Florencio Chapa, and her mother was Margarita de la Peña. Her father owned land in Porción 45, Mier, Porción 46, Mier. In 1750, she lived in Camargo. The census recorded that she was the daughter of a settler, española, and 6 years old. Her household had 7 people, and they did not receive government aid to move to the colony.