She was born circa 1738. Her father was Francisco Lopez de Jaen, and her mother was Maria Agustina Longoria. Her father owned Porción 12, Camargo. In 1750, she lived in Camargo. The census recorded that she was the daughter of a settler, española, and 12 years old. Her household had 14 people, including 3 servants, and they received government aid to move to the colony.
She married Bernardo Gomez de Castro, son of Pedro Gomez and Maria de la Garza. He owned Porción 13, Camargo. His father owned Porción 53, Camargo.