Palazzo Castani, Renaissance palazzo near Piazza San Sepolcro, Milan, Italy

Palazzo Castani is a three-story Renaissance building in Milan that features a marble entrance, terracotta decorations, and an interior courtyard. Corinthian columns support round arches across three sides of the courtyard, creating a harmonious classical design.

The palace was built in the 15th century and underwent reconstruction in the 17th century while keeping its Renaissance structure intact. It played a political role in the early 1920s before eventually serving other purposes.

The name Sansepolcrismo comes from Piazza San Sepolcro, where the Federazione Fasci Milanesi had its seat in the palace; the movement was named after the square. On the first floor, the window tympanums are broken by shell figures, while the second floor has mixtilinear wrought-iron balconies.

The building now houses a police station, which means visitors may encounter restrictions when exploring interior spaces. Those wishing to admire the architecture can view the facade and entrance from the street without limitations.

The name Sansepolcrismo comes from Piazza San Sepolcro, where Mussolini's Federazione Fasci Milanesi had its seat in the palace. The movement took its name from this square, not from the building itself.