Pedro de los Ríos was named governor of Castilla del Oro in May 1526 and took charge of the post in July of the same year.
However, the governor of Honduras Diego López de Salcedo y Rodríguez soon arrived in León, Nicaragua, and obliged Ríos to abandon the post and return to Castilla del Oro.
After several years of mishandling the governorship of Castilla del Oro, he was removed from the post and succeeded by Antonio de la Gama in August 1529.
His duties done in Central America, he decided to join Francisco Pizarro in the newly discovered territory of Peru.
[1] Ríos sided with Pizarro's forces against initial unsuccessful attempts by the Spanish Crown to regain Peru.