She was born circa 1676, and was baptized 17 Sep 1676 in Monterrey. Her father was Gregorio Fernandez de Tijerina, and her mother was Maria Gonzalez.
She married Juan de las Casas, son of Marcos de las Casas and Gertrudis de la Vega. It was his second marriage.
She died on 30 Sep 1692 in Monterrey. She was 16 years old.