The Taverner was the manager of a little premise only used to sell and drink wine. Every year he had to swear to behave seriously to obey to the "Credenza" rules.

According to the statutes of 1329, during the period between St. Martin and Michael the taverners of Ivrea had to buy only wine produced in the territories of the city and rehower uported for wrong-doing had the right to receive half of the load and the other half was for the city lords who, at that time, were the Savoia and the Acaia families. To prevent the tawerner from defrauding a customer, the Town Hall marked the mugs where the wine had to be poured; for a certain period these jugs were fastened to the bench by a small chain, but then, due to the its inconvenience, this imposition was suppressed in 1376.