Mentioned for the first time as the "Plebe de Lentiago" in the parchment code of 1204, it was erected as a bulwark of the bishopric of Ceneda, now Vittorio Veneto, due to its strategic position between Belluno and Feltre.
The Church is the result of restoration after the damages caused during the Cambraic War (16th century) siege. It was during this period that Cesare Vecellio painted the imposing coffered wooden ceiling: 20 paintings depicting the Stories of the Madonna taken from the Gospels of Luke, Matthew, John, and the Apocrypha.
At the end of the central nave, we find the "Polyptych of the Assumption," the work that gives the name to the entire religious building. Created by the workshop of Titian, it portrays 8 Saints within narrow mosaic niches, while at the top of the polyptych, the Dead Christ attributed to the hand of Cesare Vecellio is depicted. A particular mention is given to Saint Titian the bishop, which shows possible interventions by Titian Vecellio.
From an architectural point of view, the space consists of three wide naves divided by two colonnades with 5 spans each and a large presbytery. The columns, carved in local stone, are topped by simple volute capitals in medieval style. Numerous other works are contained within the majestic church by artists such as Francesco Terilli, Giovanni da Mel, Palma il Giovane, Luigi Cima, Pietro Liberi, Francesco Frigimelica, and Antonio Lazzarini.
Since 1880, the Church has been a National Monument.
