The Annals of Caffaro, written by Caffaro di Rustico da Caschifellone between 1099 and 1163, are important historical documents that tell of the municipal origins of Genoa. Over the years they were implemented by other chroniclers and the last was Jacopo Doria who completed the work in 1293. The documents were alienated, probably during the Napoleonic period, and today the originals are in Paris. The State Archives of Genoa worked hard to obtain its restitution, but without success. In 2016, however, he managed to have them on loan for the realization of the documentary exhibition “Treasures of the Archive”. The documents kept at the Ansaldo Foundation are handwritten copies made by Giovanni Ansaldo in the mid-nineteenth century. It is assumed that the copy was made directly in Paris, therefore they represent a very important testimony for the city of Genoa. The copy is part of the Giovanni Battista Ansaldo Family Archive, which contains materials relating to several members of the Ansaldo family.