In the XIV century, the Municipality of Treviso granted, to the Servants of Mary, the area to the construct the convent and the church dedicated to Saint Catherine. The convent was suppressed in 1772, and all religious correlations ceased, the buildings of the complex became state property and used as military warehouses. This caused severe adjustments to the architecture and decorations of the convent, as well as all the artistic heritage and furnishings disappearing.
Mario Botter, restorer and art lover from Treviso, following the severe damage suffered during the bombings in the Second World War, worked on the complex bringing to light an incredible fourteenth-century pictorial cycle, hidden for centuries under the anonymous plaster that whitened the walls of the church. It is an exceptional anthology of paintings from the Venetian hinterland dated from the mid-fourteenth century to the first decades of the fifteenth century, culminating with frescoes now traceable to Gentile da Fabriano and his coveted. These discoveries favored the decision to restore the entire complex for cultural functions. In 1967, due to Carlo Scarpa organizing an excellent exhibition on Arturo Martini, the municipal administration conclusively decided to transform the whole area into a museum. The restoration, however, continued with particular commitment from the late 1990s until the present day, the building has finally become the headquarters of the Treviso Civic Museums.
The exhibition spaces of the former convent develop around two cloisters that follow the structure of fourteenth-century buildings but gained a more current architectural imprint towards the middle of the sixteenth century. The archaeological collections of the city are kept in the museum. The visit is complete after following the corridor adjacent to the large sanctuary, to the antique collections previously owned by the founder of the Civic Museums, the abbot Luigi Bailo, consisting of small bronzes and parts of stone monuments from the Greek and Roman ages.
From 2018, in the rooms on the first floor of the ancient convent, the so-called "long sleeve", a collection of medieval and Renaissance art is visitable. The itinerary develops in a chronological sense and moves - in connection with the famous pictorial cycles present in the ex-Church - from medieval testimonies until the eighteenth century with a selection of 150 works. That underline the relationship with the area, from collectors who enriched it with gifts and artists who worked in Treviso.