This medieval and renaissance town, crossed by the River Lemene, offers at every angle very interesting views. The first document , showing the existance of Portogruaro as a town, relate to the 10th January 1140. Portogruaro soon became important: on the left side of the river the commerce of the town began and on the right side the patriarchal and episcopal castle.
The fortune of the town of Lemene continued as long as the customs of Portogruaro was on the fixed route for goods to Germany. It was a time of growth and wealth for the inhabitants who built the palaces that everybody can still admire in the historical centre. The town emblem is the gothic town hall , brick faced, of 1265. The side wings, in perfect harmony with the central part, were added in 1512.