La Veneranda Fabbrica del Duomo of Milan is the historic, nonprofit organization that maintains the Milan Cathedral on a daily basis. Instituted in 1387 by the will of the standing Signore of Milan, Gian Galeazzo Visconti, it was created to fund the planning and construction of the grand, gothic monument. Today, after over six centuries, it manages not only the architectural and artistic restoration of the Duomo, but also its preservation and promotion through the organization of numerous cultural activities geared towards visitors and citizens.

La Fabbrica also takes care of the management of the Grand Museum, the Musical Chapel, the Archives and the Library, which along with the Candoglia Quarries and the Marble Worker's yard and Duomo work sites, make up the core of the Milanese heritage, as well as the heritage of humanity.

Proceeds from the auction will go entirely to the fundraising campaign: “Adopt a Spire. Engrave your name in history”, founded by initiative of the Veneranda Fabbrica del Duomo of Milan in 2012 with the intent of actively involving all citizens in the protection of the Duomo and its 135 spires. The Duomo: an endless story that needs everyone's help to carry on.