The territory of Campoformido and its hamlets was certainly inhabited in Roman times, at least from the 1st – 2nd century B.C. Various Roman settlements were present in its territory, and several necropolises have been found throughout the municipality.
The town is known for giving its name in 1797 to the treaty by which Napoleon Bonaparte ceded Veneto to Austria in exchange for Lombardy, marking the end of the Republic of Venice. The treaty was signed by General Bonaparte and four representatives of the Habsburgs at the House of Bertrando Del Torre, located in the current Piazza del Trattato.
The Statue of Peace, a notable monument of interest, is located in Piazza del Trattato. The one in Campoformido is a copy of the statue commissioned by Napoleon Bonaparte to commemorate the Treaty of Campoformido.
The main church of Campoformido is located in Piazza del Trattato. Dedicated to Santa Maria della Purificazione, it was built as we see it by the architect D’Aronco at the beginning of the 20th century, but stands on the previous medieval church, of which some frescoes from the 16th century, the altar, and a holy water font remain among other things.
