Diocesan Museum of Milan

The Diocesan Museum of Milan, officially known as the Museo Diocesano Carlo Maria Martini di Milano, is an art museum in Milan, Italy, dedicated to the preservation and exhibition of sacred artworks, with a particular emphasis on pieces originating from Milan and Lombardy. Established to protect, enhance, and share the artistic treasures of the Archdiocese of Milan within the spiritual context that inspired them, the museum serves as a major repository for religious art and liturgical heritage.

The concept for the museum originated in 1931 when Cardinal Ildefonso Schuster, Archbishop of Milan, articulated the vision in his letter Per l'arte sacra e per un museo diocesano. Schuster sought a vehicle to protect and promote the art collection of the Archdiocese of Milan. The project was eventually realized with the support of Pope Paul VI. Following a lengthy restoration period necessitated by damage from World War II bombings, the current venue was inaugurated on December 7, 2001, by Cardinal Carlo Maria Martini. Monsignor Luigi Crivelli, the first president of the Fondazione Sant'Ambrogio which manages the museum, was also a passionate interpreter of this institutional vision. Since 2002, the museum has hosted the annual initiative Un capolavoro per Milano.

The museum's holdings draw from the diocesan territory, the Quadreria Arcivescovile, and private donations. The collection is organized into numerous thematic sections, including Sant'Ambrogio, the Treasure of San Nazaro, works from the Diocese, the Arciconfraternita del Santissimo Sacramento, and liturgical furnishings. It also houses several distinct named collections, such as the Marcenaro, the A. Crespi gold grounds, and the Schubert, Monti, Pozzobonelli, Visconti, Erba Odescalchi, and Sozzani collections, alongside sculptures by Lucio Fontana. The works span from late antiquity to the nineteenth century, encompassing painting, sculpture, and decorative arts.

Significant early works include the fourth to sixth century wooden door panels from the main portal of the first Basilica of Sant'Ambrogio, a tenth century polychrome stucco clipeus of the blessing Sant'Ambrogio, and the fourth century silver capsella of San Nazaro. The latter, a roughly 20 centimeter cube reliquary with embossed scenes like Christ announcing the new doctrine to the Apostoli and the Madonna with Child, was found by Carlo Borromeo in 1578. Paintings include the late fourteenth to early fifteenth century detached fresco Corteo dei Magi by Michelino da Besozzo, a Crucifixion by Anovelo da Imbonate, and works by Bergognone and Marco d'Oggiono. Later paintings include Bernardino Campi's San Giovanni Battista decollato, Alessandro Magnasco's Il furto sacrilego from 1731, and Francesco Hayez's 1827 Gesu Cristo crocifisso con Maria Maddalena. The museum also holds a unique collection of 41 fourteenth and fifteenth century Tuscan and Umbrian gold ground panels donated by Alberto Crespi, featuring artists like Bernardo Daddi, and a notable group of sculptures from the thirteenth to seventeenth centuries donated by Caterina Marcenaro.

The museum is situated within the Chiostri di Sant'Eustorgio, part of the ancient convent of the Dominican Order, located at the back of the Basilica of Sant'Eustorgio in the Porta Ticinese area of Milan. The historic complex was returned to the city after a prolonged restoration campaign to repair severe damage caused by World War II bombings.

The museum is located in Milan, Italy, in the Porta Ticinese district. It operates under the management of the Fondazione Sant'Ambrogio, the archdiocesan body established to oversee the institution. The museum is accessible to the public and maintains an online presence at its official website, chiostrisanteustorgio.it.