Pusterla di Sant'Ambrogio (Milan)
The Pusterla di Sant’Ambrogio was originally built in 1171 after the city was destroyed by Frederik I Barbarossa in 1162. This postern was one of the ten secondary gates of Milan medieval walls. When in the 16th century the new set of city walls went up, the Pusterla of Saint Ambrose was turned into a prison. In 1939 this postern was completely restored with the original features.
The Pusterla di Sant’Ambrogio is sited near the Basilica of Sant'Ambrogio, one of the most ancient and important churches in Milan. Above the two arches of the door there is a tabernacle with Saint Ambrose, the patron of Milan, Saint Gervase and Saint Protase.