He was born in Buenos Aires on December 3, 1895. Brother to the artist, musician and poet Santiago Stagnaro, he concentrates on sculpturing, especially busts, without ever having received formal education in this art.
A local of La Boca, he holds individual exhibits at the Asociación Impulso, in 1944, and at the Ateneo Popular de la Boca, in 1949. He also exhibits in the city of Mar del Plata, and at the Galería Argentina de Buenos Aires, both in 1950. He takes part in the Salón Nacional and the provincial show rooms as of 1936. In 1937 he obtains the "Bolsa de Comercio" del Salón Nacional Award and, two years later, he receives the Municipal Third Prize. In 1940, he is awarded the Second Prize at the Salón Municipal and in 1952 he receives the Comisión Nacional de Bellas Artes award, among others.
In 1952 he makes a bronze portrait of the painter Fortunato Lacámera, which is actually displayed at the Museo Municipal de Artes Plásticas “Eduardo Sívori”. The following year, in 1953, he takes part in the exhibit Cincuenta Años de Pintura y Escultura en la Argentina and in 1954, in the XI Bienal de La Habana, Cuba.
He dies in Buenos Aires on November 28, 1977.
His work is part of the patrimony of the following museums: Museo Sívori de Buenos Aires; the Escuela-Museo "Don Pedro de Mendoza" and the Museo de Bellas Artes “Quinquela Martín”, both in La Boca; the Instituto Histórico Ciudad de Buenos Aires and other institutions in the cities of Avellaneda, La Plata, Mar del Plata, Tandil, Junín, Santa Fe, Santiago del Estero, La Rioja, Córdoba and Santa Rosa.