The village of Strumi near Poppi, in search of the remains of the ancient Abbey of San Fedele

The village of Strumi is located near Poppi, in Tuscany, on the northern border of the province of Arezzo, in Casentino. It was founded by the Counts Guidi, who were also decisive in the growth of the medieval village of Poppi, where, in the 12th century, they built the imposing palace-castle on the top of the hill in a highly strategic position for the control of the valley. The Guidi, who were already present in the area around Poppi in the 10th century, built their first castle on a hill in the location of Strumi, above the small village where the ancient Abbey of San Fedele a Strumi stood and whose remains are present in the hamlet of the same name. The abbey, which initially adopted the rule of the Cluniacs, passed from the end of the 11th century to the rule of the Vallombrosans. Strumi was a religious center of reference until the 12th century when the Guidi family, who were its protectors, decided to move it inside the building of Poppi. In 2011-2012 with a laser scanner survey it was obtained a conspicuous amount of data regarding the morphology of the site, especially on the exterior and to a lesser extent on the interior, particularly in the church and in the ex-apse area. With the latest research started in 2019, the data already acquired were implemented with a new survey project, carried out using 3D photomodeling. The new data enhances the many information related to the morphology of the site, however, it was chosen to integrate it with SfM techniques, by making photogrammetric surveys both terrestrial and aerial.