 Carmen Parrilla assumes that San Pedro was a grown man by the end of the 15th century, when he wrote "Desprecio de la Fortuna", because he apologized for the mistakes of his youth in this work.Parrilla has found that San Pedro was writing in the 1480s and 1490s for the queen's entourage.He probably died and went unnoticed by the younger people who were unfamiliar with him.