a vow to the Saints Cosmas and Damian. In 1363, Bernabò Visconti commissioned an equestrian statue representing him to Bonino da Campione, which he had installed in the apse above the central altar. In 1384, on the death of his wife, Regina Della Scala, Bernabò had her body placed in the church inside a sarcophagus built by the workshop of Bonino da Campione. When Bernabò died in 1385, for his sepulture, Bonino da Campione made a sarcophagus placed under the pre-existing equestrian statue. Early modern era (16th–19th centuries) After the end of the Visconti and Sforza period, in 1548, the church passed to the Carmelites, who administered the local parish. In 1783, the Josephist suppressions led to the deconsecration of the church and its secular use. In 1814, the remains of Bernabò Visconti were moved to the nearby church of Sant'Alessandro, while the funeral monument was transferred to the archaeological museum of Brera and definitively placed in the Sforza Castle Civic Museums. Only later, in 1892, the same destiny was reserved for Regina Della Scala's remains which were removed and placed next to her husband. Her sarcophagus found a place near that of her husband. The church, stripped of all its furnishings and works of artistic interest, was reduced to a shelter for cars and carts, then it became a workshop and finally a warehouse. The bell tower served initially as a signal tower in the Chappe telegraph line, created in 1805 to connect Paris and Milan. Later it was used as a meteorological observatory. After the unification of Italy, the Municipality of Milan wanted to start an urban renewal plan in the city center. In 1877, the new Via Carlo Alberto, today Via Mazzini, required demolishing old houses and the church itself along the route. Despite the opposition of the institutions responsible for cultural heritage conservation, the municipal administration suddenly decided to demolish the front part of the church. The Waldensian Milanese community bought the surviving portion, undertaking the recovery of the ancient façade, which was dismantled and reassembled in the new position, oblique to the previous one. They consecrated the church in 1881. Final demolition (20th century) The new regulatory plan of 1928–1934 imposed many changes on the city, such as the covering of the canals, also providing for the entire church demolition. The intervention was interrupted during the Second World War. In the post-war period, demolition began.