Abbazia di Santa Maria Assunta, Catholic abbey near Terraglio road in Mogliano Veneto, Italy

The Abbazia di Santa Maria Assunta is a former Benedictine monastery in Mogliano Veneto, of which only one two-storey wing remains, adjoining the parish church. On its west wall traces of painted ornamental bands survive; on the opposite side stands the west portico, the last part of the 13th-century Romanesque cloister. A small stone well stands in front of it, and the south sacristy of the church preserves the oldest structures of the complex.

A palaeochristian pieve at Mogliano was devastated by a Hungarian raid in the early 10th century. Around 997 the bishop of Treviso, Rozone, charged abbot Vitale with rebuilding the church and founding a Benedictine monastery; the foundation act is dated 28 February 997. Benedictine nuns replaced the monks in 1075, and from 1177 the abbey depended directly on the Holy See. Sacked repeatedly, the nuns moved to Treviso in 1413.

The Benedictine community shaped daily life in the area through agriculture, craftsmanship, and spiritual guidance for many generations. Local people continue to visit for worship and to mark important moments in their lives.

Only one wing of the abbey survives, next to the parish church; the west portico of the 13th-century Romanesque cloister faces a small stone well. The complex was restored in 1929 and turned into an oratory, so it is not an active monastery. Look for the frescoed bands on the west wall of the two-storey building.

In 1992, work to repair a crack in the south wall of what is now the cathedral's south sacristy uncovered frescoes by Filippo da Firenze, commissioned in 1344 by abbess Agnese D'Arpo. The surviving scenes of the Passion and the Last Judgment include her own figure holding a pastoral staff at the foot of the Cross. A further fragment of the damned was found hidden by the present vaults.