Cardinal Amerigo Corsini’s crosier in gilded bronze with translucent enamels, made by Florentine goldsmiths in the second quarter of the 15th century. The crosier, together with the mitre, is used by bishops on solemn liturgical occasions in the Catholic rite, it is part of their insignia, the objects that mark them out from other clergymen. Crosiers are often commonly called crooks, and are shaped like a shepherd’s crook, alluding to a bishop’s role as a shepherd of souls. This crosier comes from the Cathedral, probably from the chapel of Saint Peter and Saint Lorenzo, which was under the patronage of the Corsini family. The crook itself depicts the Madonna and Child Enthroned, with the Cardinal kneeling opposite in a sign of devotion. The shaft is decorated with enamels depicting the Madonna, angels and saints the Corsini family were especially devoted to, and their coat of arms is clearly visible among the other decorations.