Museo benedettino nonantolano e diocesano d'arte sacra, Religious museum in Nonantola, Italy.

The Museo benedettino nonantolano e diocesano d'arte sacra is housed within an ancient monastic complex and presents sacred art through two main exhibition sections. These sections document diocesan and abbey history by displaying a range of religious objects and artworks.

The museum opened on 31 December 1999 for the Jubilee of 2000, at the wish of Monsignor Lino Pizzi, later bishop of Forlì-Bertinoro, to highlight the abbey's heritage. Its papal relic ark held the relics of Pope Silvester I from 756, when they arrived from Rome, until 1914. The abbey archive preserves parchments from the 8th to 14th centuries bearing the monograms of Charlemagne, Matilda of Canossa and Frederick I Barbarossa.

The museum's name links the diocesan collection of parish works with the abbey treasure of San Silvestro. Room V traces the commendatory abbots who governed abbey and diocese from 1449 to 1986, with a focus on Carlo Borromeo, abbot from 1560 to 1566; it holds one of his shoes and Ludovico Carracci's 1612 painting of him baptising a newborn during the plague in Milan.

The museum occupies the abbey palace beside the Basilica of San Silvestro, and its route runs through five numbered rooms, from the textile room to the room on the commendatory abbots. The parchment collection in Room III spans the 8th to 14th centuries and includes documents bearing the monograms of Charlemagne, Matilda of Canossa and Frederick I Barbarossa. The abbey library keeps incunabula and 16th-century editions shown in the same room.

The Byzantine silks in Room I were found inside the abbey in 2002, wrapped around the relics of Nonantola's saints. They include a red samite with eagles and a white samite with lionesses, deer and hares. The same room holds the Roman ark that kept Pope Sylvester I's relics from 756 until 1914.