Uriarte was born in Santiago del Estero and was taught at the local Convent of San Francisco. He studied arts and theology at the Jesuit University of Córdoba, and was ordained in 1782, becoming a sub-deacon in 1783, becoming a priest the same year.
Uriarte was born in Santiago del Estero and received education at the local Convent of San Francisco. He studied arts and theology at the Jesuit University of Córdoba, and was ordained in 1782, becoming a sub-deacon in 1783, and then a priest in the same year.