The Fabbrica’s accounting documents, a rich source of information for art history scholars and others, finds ample evidence in another series, the MANDATES.
The Mandates get their name from the fact that the Capitolo (the cathedral’s clerical authority) mandated the treasurer of the Fabbrica to disburse necessary funds for all those who worked on the cathedral’s construction (suppliers, artists, artisans, workmen, etc.) and to creditors of the Fabbrica. These documents, organised in chronological order, are an extraordinarily interesting source given that the mandate often was accompanied by documentation, such as correspondence relating to estimates in which the creditor lists all the work completed in detail.
The series of Mandates, the first of which dates to 1505, is dotted with numerous gaps up until 1575. From then on, they continue uninterrupted until 2010.