STRUMI. — An ancient Benedictine abbey in the Casentino, founded by Teugrimo or Teudegrimo, of the Guidi family, toward the end of the 10th century.
Dedicated to St. Fedele, it perhaps owed its origin to the revival of devotion to this saint (cf. Anal. Bolland., 9 [1890], pp. 354–59, and 21 [1902], p. 29 ff.; BHL, 2925); but around the middle of the 11th century it was already in decline, so much so that around 1085 the Vallombrosans succeeded the Benedictines (it certainly depended on the former in 1090, as can be inferred from a privilege of Urban II: Jaffé-Wattenbach, 5433), whose first abbot was the blessed Andrea da Parma. Shortly after the middle of the 12th century, Giovanni (v.), later antipope under the name Callistus III, governed the abbey. Toward the end of the same century, under Abbot Placido, the site having become unsafe because of the continual struggles between Guelphs and Ghibellines, the monks began to move to Poppi, which had been fortified by the Guidi.
The new abbey, also dedicated to St. Fedele, flourished until the 15th century, while S., abandoned, was reduced to a ruin (the church was still standing in 1583, but no longer in 1850).
The abbey of Poppi was granted in commendam to the archbishops of Florence during the 15th century, but in 1510 Julius II returned it to the Vallombrosans. Suppressed in 1809 following the Napoleonic law, it was never re-established; the church of S. Fedele still remains, with several valuable paintings and a panel depicting a Madonna from the 13th-century Tuscan school.