In 1764 the decorations were completed by an artist from Bologna, Mauro Tesi, which marked the transition from Baroque to neo-classical. Many years later, in the 1930s started a decline after changes in the urban architetcture and the destruction of the district in order to construct the post office. Marginalized since that moment, the church has been neglected, serving as a storage location despite its historical and artistic value.
The effectual memorandum of agreement between the diocese, the cathedral, and the superintendency led to the opening of the restoration worksite which started at the end of February 2017 and concluded in late June.
After restoration's works in order to celebrate the reopening of this jewel of baroque art, it has been decided to host the masterpiece La visitazione by Luca Della Robbia, one of the fathers of Renassaince art in Italy. The artwork depicts the warm meeting between Vergine Maria and her cousin Elisabetta as it's described in Gospel of Luca. La visitazione will be on display in the Church of San Leone until January 2018, whereupon it will be returned to San Giovanni Fuorcivitas Church in which is usually located.