She was born circa 1767, and was baptized 28 Oct 1767 in Mier. Her father was Jose Antonio Olivares, and her mother was Maria Catarina Peña. Her father owned Porción 17, Mier. Her padrino was Jose Santiago de Jesus Olivarez, and her madrina was Maria Juliana Flores (wife). In 1782, she lived in San Juan Bautista del Cojo in household number 128. The church census recorded that she was an unmarried girl, española, and 19 years old. Her household included 9 people.
She married Jose Martin Saenz, son of Marcelino Saenz and Margarita Almaraz on 5 Oct 1784 in Mier. She was 17 years old, and the groom was 15 years old. Their padrino was Juan Angel Saenz, and their madrina was Maria Gertrudis - . His father owned Porción 25, Mier.