He was born circa 1770. His father was Marcelino Saenz, and his mother was Margarita Almaraz. His father owned Porción 25, Mier. In 1782, he lived in San Nicolas/ Santa Rosalia de la Bonita in household number 136. The church census recorded that he was a child, español, and 12 years old. His household included 6 people.
He married Maria Rosa Montalvo, daughter of Antonio Montalvo and Maria Petra Salinas on 24 Feb 1789. He was 19 years old, and the bride was 17 years old. Her father owned Porción 54, Mier.