Castle of Giaggiolo, Castle ruin in Civitella di Romagna, Italy

Castle of Giaggiolo is a ruined medieval hilltop castle above the Voltre hamlet in the Civitella di Romagna municipality, in the Romagna Apennines about 30 km from Forlì. Only a few remains survive, among them a massive octagonal bastion. The site lies at roughly 470–495 m in the Bidente/Ronco drainage area, near the old Romanula locality.

Documented in 1021, when Emperor Henry II, Pope Benedict VIII and Ravenna's archbishop Eriberto invested Severo's descendants with the County of Giaggiolo, the castle was the seat of the Malatesta branch of Giaggiolo. Orabile Beatrice, wife of Paolo Malatesta, was born here around 1255; Guido da Montefeltro gained the count's title in 1263, and Count Uberto Malatesta was killed in 1324. A 1376 copy of the castle statute is kept in the bishop's archive of Sansepolcro.

The fortress shows how Renaissance military architecture reflected local needs for protection and security in the region. Its octagonal shape was a deliberate design choice that allowed defenders to monitor approaches from every angle.

The site is accessed via the Strada Giaggiolo-Pian di Spino road near Civitella di Romagna and stands on open hillside terrain. Plan your visit for daylight hours since the location is remote and lacks nearby amenities or formal facilities.

The castle's name appears in three forms — Giaggiolo, Ghiacciolo and Ghiaggiòlo — and its counts' coat of arms, a towered tower with a crescent, became the emblem of Civitella di Romagna. A copy of the castle's 1376 statute survives in the bishop's archive of Sansepolcro.