She was born circa 1776, and was baptized 16 Oct 1776. Her father was Antonio Montalvo, and her mother was Maria Petra Salinas. Her father owned Porción 54, Mier. In 1782, she lived in Las Jaras in household number 108. The church census recorded that she was a young child, española, and 4 years old. Her household included 14 people.
She married Jose Maria Peña, son of Jose Salvador Peña and Maria Alanis on 16 Feb 1795. She was 19 years old, and the groom was 25 years old.