Castello di Francavilla Fontana, Medieval castle in Francavilla Fontana, Italy.

Castello di Francavilla Fontana is a castle-palace with a rectangular plan and large corner towers, surrounded by a wide moat. Between the towers stands a large Baroque building in sandstone with four arcades framed by sculptures and colonnades. Inside is a 14th-century baptismal font attributed to Ferdinando Sanfelice.

Giovanni Antonio Orsini del Balzo, Prince of Taranto, obtained the Francavilla fief in 1455 through an exchange with Giacomo Antoglietta, giving up Salve and San Marzano plus 100 once of carlini. He built a square tower with a moat and drawbridge north of the town. Around 1547 Duke Giovanni Bernardino Bonifacio enlarged it with Renaissance fortifications, and from 1572 the Imperiali turned it into a residence.

The castle is also called Palazzo Imperiali after the feudatories who bought Francavilla in 1572. When Michelino died in 1782 without heirs, his designated heir Vincenzo Imperiali di Latiano sued the Regio Fisco and won the title of prince of Francavilla Fontana, inheriting jewels, furniture, the library and the theatre equipment.

The castle stands in the town centre, a short walk from the main square. The ground floor and first floor, home to the archaeological museum since 2018, are reached by stairs; the building reopened to the public on 14 July 2012 after restoration. The council offices on site mean some rooms close during administrative hours.

During restoration work, a wall section belonging to one of the corner towers of the old fortress was found while a room was being converted into the council chamber. Recovery work on the ground floor also brought to light a votive chapel entirely covered in frescoes, datable with good probability to the 16th century.