Born Pedro Piedades Chaves in San José, Costa Rica, on March 28, 1907, he was the illegitimate son of Engracia Chaves Umaña[REF] and José María Agüero Barboza, a military commander.
Besides his poetry and academic work, Arturo Agüero also gained recognition for his columns in Costa Rican newspapers La Nación and La Prensa Libre.