Santa Maria in Gruptis, Medieval abbey ruins in Vitulano, Italy.

Santa Maria in Gruptis is a medieval abbey located on Mount Drago within the Taburno Camposauro massif, with ruins that include a stone tower, entrance portal, and sections of the surrounding walls. The site sits at about 607 meters elevation and can only be reached by hiking trails, as there is no vehicle access.

Founded between 940 and 944 by the Lombard prince Atenulf II or Atenulf III, the abbey was first home to Benedictines, then Celestines and Humiliati, and held several fiefs. In 1303 a popular revolt blocked its annexation to Santa Maria in Mazzocca. After the 1688 earthquake it was abandoned, and in 1705 Cardinal Vincenzo Maria Orsini, archbishop of Benevento and later Pope Benedict XIII, deconsecrated it because of neglect and brigand attacks.

The name "in Gruptis" refers to the karst caves nearby, which collected and distributed water to the abbey; the Madonna dedication came from a Byzantine icon found inside a cave. The oldest recorded name was Santa Maria di Monte Drago, after the mountain. A 1545 tax decree named the abbey Santa Maria dello Vallo di Vitulano under abbot Blasio Sellaroli.

The site is accessible from Vitulano by hiking trails and requires sturdy footwear, plenty of water, and time for the climb. It is best to visit when weather conditions are favorable, as the trails can vary depending on the season.

The abbey's original parchments and documents, which record land transactions and economic activities, are preserved at the Società Napoletana di Storia Patria in Naples. These papers offer a window into the economic and social life of this mountainous region during medieval times.