The Miracles of Our Lady
The sources used by Gonzalo de Berceo were different stories about the miracles written in Latin. The book helped to promote Marian devotions among the people by making the subject easier to understand for them. However, it contains many unusual elements that give Mary powers of returning people from the dead or the ability to save sinners from God's Judgement.Saugnieux, Joël. Berceo Y Las Culturas Del Siglo XIII. Logroño: Servicio de Cultura de la Excma. Diputación Provincial, 1982.