Rocca Aldobrandesca (o Castello Ciacci)

Saturnia, Province of Grosseto, Italy, Italy

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Rocca Aldobrandesca, also known as Castello Ciacci, is a historic fortress in the medieval village of Saturnia in the Province of Grosseto, Tuscany.

It was originally built by the powerful Aldobrandeschi family between the late 12th and early 13th centuries on the site of earlier defensive structures, serving to protect this important settlement known since Roman times. The fortress was heavily damaged in the early 15th century and was later restored and strengthened by the Republic of Siena, which added distinctive round corner towers and Renaissance defensive features.

Many sections of its stone walls, battlements, and arrow slits remain visible today, preserving much of its medieval character. Within the fortified enclosure stands the neo-medieval Castello Ciacci, built in the 20th century by the Ciacci family and designed to harmonize with the older fortress. Together, these structures create one of Saturnia’s most notable landmarks, offering visitors a glimpse into the area's long military history and architectural heritage.