To the left of the Santa Teresa church, at 38 Via Mazzini, a marble plaque marks the confortatory: the place where those condemned to death received spiritual consolation before their execution. In 1852, five rooms in the convent of the Discalced Carmelite Fathers, adjacent to the church, were adapted into temporary cells to hold the patriots later known as the Martyrs of Belfiore during their final days. Monsignor Luigi Martini, a priest renowned for his charity and diplomacy, provided spiritual assistance to the condemned. Only after Mantua was annexed to the Kingdom of Italy did he record his recollections of their final days. In his book Il Confortatorio di Mantova, he recounts the Belfiore conspiracy, the lives of its protagonists and conversations he held with them. Published in a small print run in 1867, the volume attracted considerable interest and received praise from figures such as Alessandro Manzoni and Niccolò Tommaseo. A second edition was prepared but not released to avoid censorship. In the early 20th century, the book was reissued in an abridged, popular version but was not published in a complete edition until the mid-century, when it became established as an important document for Risorgimento history. The plaque was placed above the door of the confortatory on 7 December 1922, the 70th anniversary of the executions of Don Enrico Tazzoli, Carlo Poma, Angelo Scarsellini, Bernardo de Canal and Giovanni Zambelli. Written in commemorative language, it honours the sacrifice of the patriots who fought for the unity and independence of Italy.