She was born circa 1780. Her father was Joaquin Moreno, and her mother was Maria Barbara Vela.
In 1782, she lived in Mier in household number 57. The church census recorded that she was a young child, española, and 2 years old. Her household included 6 people:
Joaquin Moreno, married, español, age 36.
Maria Barbara Vela, married, española, age 31.
Maria Matiana Moreno, an unmarried girl, española, age 12.
Marcelo Moreno, a child, español, age 8.
Joaquin Moreno, a young child, español, age 6.
Maria Josefa Moreno, a young child, española, age 2.