The Lamberti Tower dates back to the 12th century and the presence of several bells earned it the name 'Turris a Campaneis' (Tower of Bells) or 'Turris Major Horarum'. It rises in Piazza delle Erbe, towards the corner of the Costa, and its construction is said to date back to 1172. Two bells were placed on it by the resolution of 28 November 1295. These bells still retain their old names, Marangona and Rengo.

Apparently, the name Marangona was given to the bell that rang at the end of the craftsmen's work, to recall an episode of jealousy: a Veronese noblewoman, jealous of her husband, allegedly tried to injure her rival by throwing a stone at her. The gentlewoman was apparently condemned to pay for the throwing of the bell and, since the rival was the wife of a carpenter (in Veronese dialect 'marangon'), the bell would be named after her.