شمال شرق إيطاليا
The etymology of Rezzonico has different hypotheses. One theory suggests that it derives from the Rhaetic people, an Alpine tribe from Northeast Italy and the area which today comprises Switzerland and Tyrol, Austria; another that the term derived from an Etruscan general, Rhaeto, who supposedly lived around the area; and ultimately, that the name may derive from "risculada", a term local to the town which describes its type of cobblestone paving.