She was born circa 1763. Her father was Cristobal Javier Baez de Benavides, and her mother was Maria Rita Cuellar. In 1782, she lived in Mier in household number 4. The church census recorded that she was married, española, and 19 years old. Her household included 3 people. In 1791, she lived in Mier in household number 4. The church census recorded that she was married, española, and 28 years old. Her household included 10 people.
She married Jose Joaquin Chapa, son of Jose Florencio Chapa and Margarita de la Peña on 13 Feb 1776 in Revilla. She was 13 years old, and the groom was 22 years old. His father owned Porción 45, Mier, Porción 46, Mier. Her husband died on 21 Sep 1802. He was 48 years old.
Maria Juana Chapa, born 1777. She married Jose Francisco Guerra Cañamar, son of Juan Manuel Guerra Cañamar and Maria Isabel Treviño on 28 Feb 1795 in Mier.