Arquà Petrarca has very ancient origins and there are archaeological finds that date back to the Bronze Age. Pile dwellings, huts, crockery made of baked clay, animals’ bones and flint tools are the proof of human settlements around the small Costa Lake. A necropolis has been found in the slopes of Monte Ricco, with several tools and weapons belonging to the Euganean native tribes that lived in the area before the Roman colonization. All these finds can be seen at the Archaeological Atestino National Museum in Este, only 7 km away from Arquà. Recently, the Unesco has accepted a proposal to include the Costa lake in the Unesco’s World Heritage Sites. During the Augustus’ reign, Arquà Petrarca, with all Venetian lands, was annexed to the X Regio Venetia et Histria, one of the different regions in which Italy was divided. During the Middle Ages, Rodolfo Normanno lived in a castle built on top of the hill of the village, which was later called Monte Castello. The first reference of the castle dates 985 a.D. Later on, during the “Comuni” period (12th-13th century), Arquà was a vacation site for the Carraresi family, the family of Padua who ruled the entire area. During the 15th and 16th century, the noble families coming from Venice and Padua built magnificent villas in Arquà Petrarca because it was fashionable to live in the same place where the poet Petrarch had previously lived.