Marchione Castle, Medieval castle in Conversano, Italy

Marchione Castle is a limestone structure built with a rectangular layout and four cylindrical towers positioned at each corner. The building spans three floors containing multiple halls, with symmetrical porticos on both the front and rear facades.

The building's oldest layer resembles that of Conversano Castle, suggesting a fortified hunting lodge from the late 15th century. Around 1640 Count Giangirolamo II added a second floor and lowered the four corner towers. In 1730 Count Giulio Antonio III had architect Vincenzo Ruffo turn it into a noble residence; after 1806 the wood was felled and the complex rented to farming families.

The name Marchione probably comes from il macchione, the great wood that once covered 1,260 hectares along the road to Putignano. In the main hall, an 18th-century genealogical tree of the Acquaviva d'Aragona hangs beneath a wooden ceiling bearing their coat of arms, beside the presumed portrait of Giangirolamo II. The adjoining room holds the portrait of Isabella Filomarino, attributed to a 17th-century Neapolitan pupil of Paolo Finoglio.

Marchione Castle stands about six kilometres from Conversano, on the road toward Putignano, enclosed by a walled garden entered through an 18th-century portal with lion statues and the Acquaviva d'Aragona coat of arms. Just outside the perimeter stands a 16th-century dovecote tower, and a small chapel with a Neapolitan Baroque painting of the Virgin and Child sits against the wall in the inner courtyard. The complex is now used for cultural events and ceremonies, so visits depend on those openings.

A 16th-century dovecote tower stands just outside the perimeter wall, separate from the main building. Inside, the ground-floor hall is decorated with hunting symbols and noble coats of arms, and the main salon has a wooden ceiling bearing the Acquaviva d'Aragona crest. A 500-year-old oak still survives from the woodland that once covered 1,260 hectares.