The documentary "Agustín Sanz, the faithful architect" revives the career of this forgotten figure of Aragonese art, by the hand of Javier Martínez Molina, a young researcher at the University of Zaragoza. In a detective work, the historian goes to the original sources to discover unpublished aspects of the artist's life and work. The effort will have its reward: to restore Agustín Sanz as the first Aragonese architect of the Enlightenment and one of the most important in the Spain of his time.