Maria Viviana Olivares was born circa 1767, the daughter of Santiago Olivares and Maria Juliana Flores.
She married Francisco Ignacio Montalvo on 22 Nov 1786.
In 1782, she lived in Mier. The church census recorded that she was an unmarried girl, española, and 15 years old. Her household included 5 people:
Santiago Olivares, español, married, age 41.
Maria Juliana Flores, española, married, age 31.
Maria Viviana Olivares, española, an unmarried girl, age 15.
Jose Alejandro Procopio Olivares, español, a youth, age 14.
Jose Felipe Olivares, español, a young child, age 7.