Her father was Pedro Lozano Urquizu, and her mother was Mariana de la Garza de la Rocha.
She married Francisco Garcia de Sepulveda, son of Diego de Sepulveda and Elena de la Garza in 1701.
In 1701, she requested a dispensation to marry Joseph de la Garza. It was her second marriage. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.274.