Broletto is an ancient Italian word, from medieval Latin "broilum, brogilum", which probably derives from a Celtic word. Its first meaning is "little orchard or garden"; hence the meaning "field surrounded by a wall". Another meaning refers to a "place where justice is administered". This meaning explains why several places or buildings in northern Italy are called "Broletto".
Ancient Brolettoes (it.:"Broletti") are major buildings in Milan, Brescia, Pavia, Piacenza, Como, Monza, Reggio Emilia, Novara and others.