Palazzo Riario Sforza, Historic palace in Naples, Italy.

Palazzo Riario Sforza stands on via San Giovanni Maggiore Pignatelli in the historic centre of Naples. It has three floors plus an attic, ground-floor shops and a central courtyard. A large piperno portal links the street front to the courtyard, and the entrance vault carries a fresco of the Riario Sforza coat of arms, the Riario emblem with the blue viper of the Sforza. The facades have no architectural orders.

Palazzo Riario Sforza was built in the 15th century and was renovated several times in the following centuries. It took its name from the Neapolitan Riario-Sforza family. It had a period of splendour in the early 19th century, when it was the residence of Sisto Riario Sforza, Archbishop of Naples.

The name comes from the Riario-Sforza family, whose crest is frescoed on the entrance vault: the Riario arms with the blue viper of the Sforza added. The piano nobile hall, once used for dances, has a painted ceiling and walls with mirrors and gilded stucco. Part of these rooms now houses the Decumani Hotel de Charme.

The building stands on via San Giovanni Maggiore Pignatelli, in the historic centre of Naples, and is reached through a piperno portal that opens onto the central courtyard. The interior staircases are closed, single-ramp and single-body. Much of the piano nobile is occupied by the Decumani Hotel de Charme, so access to the frescoed salon depends on the hotel. The building is in a state of serious decay.

The piano nobile's frescoed ballroom, with mirrors and gold stucco on its walls, is now occupied by the Decumani Hotel de Charme. The entrance vault bears the Riario Sforza coat of arms, combining the Riario emblem with the blue viper of the Sforza. The building is currently in a state of serious decay.