From the archaeological area the visitor can go up into a 15th-century structure, which contains works from the 15th and 16th centuries.
 Of particular interest: 
Trinity (1435-1440), wood with pinnacles and a background of gold, by Andrea di Giusto Manzini;
Altar panel depicting a Sacred Conversation showing the Madonna with child with Saints Giusto and Clement (1449), by the Master of the Castello Nativity, perhaps Piero di Lorenzo, in close collaboration with Filippo Lippi;
Altar panel with the Funeralof Saint Jerome(1453), a masterpiece by Filippo Lippi, commissioned by Geminiano Inghirami for the cathedral;
Crucifixion (late 15th century), wood painted on both sides, attributed to Sandro Botticelli;
Saint Luc (c.1480), attributed to Filippino Lippi;
Annunciation (1509), stained glass, by friar Paolo di Mariotto da Gambassi,
two panels with The Madonna with child, by Maso da San Friano.
From the archaeological area the visitor can go up into a 15th-century structure, which contains works from the 15th and 16th centuries.  Of particular interest: 
Trinity (1435-1440), wood with pinnacles and a background of gold, by Andrea di Giusto Manzini;
Altar panel depicting a Sacred Conversation showing the Madonna with child with Saints Giusto and Clement (1449), by the Master of the Castello Nativity, perhaps Piero di Lorenzo, in close collaboration with Filippo Lippi;
Altar panel with the Funeralof Saint Jerome(1453), a masterpiece by Filippo Lippi, commissioned by Geminiano Inghirami for the cathedral;
Crucifixion (late 15th century), wood painted on both sides, attributed to Sandro Botticelli;
Saint Luc (c.1480), attributed to Filippino Lippi;
Annunciation (1509), stained glass, by friar Paolo di Mariotto da Gambassi,
two panels with The Madonna with child, by Maso da San Friano.
Prato Cathedral Museum