Gallo returned to Santiago del Estero and was a signatory of the peace treaty of Vinará in 1821, signing on his province's behalf with Pedro Miguel Aráoz of Tucumán and José Andrés Pacheco de Melo of Córdoba.
Gallo returned to Santiago del Estero and signed the peace treaty of Vinará in 1821, signing on behalf of his province with Pedro Miguel Aráoz of Tucumán and José Andrés Pacheco de Melo of Córdoba.