Palazzo Ducale di Sassari

On Piazza del Comune stands the palace that reshaped Sassari: raised from 1775 for the newly created Duke dell'Asinara, finished after three decades, and the seat of the city council since 1878. Its ground floor preserves a ducal drawing-room world above Renaissance cellars uncovered beneath the building.

Why it matters

Palazzo Ducale is Sassari's most important civil building and a major expression of its civic history. Don Antonio Manca, marchese of Mores and lord of Usini, was created Duke dell'Asinara in 1775, and in that same year he began assembling an entire city block behind the cathedral, joining five houses belonging to private owners into a single residence proportioned, as his testament put it, to the standing of his successors.

The building transformed the scale of urban life in eighteenth-century Sassari, and its afterlife maps the city's political history: prefecture and provincial administration from 1860 to 1878, municipal seat from 1878, and a full purchase by the Comune in 1900. The palace's council chambers, ducal drawing rooms and excavated cellars preserve distinct layers of Sassari's civic history.

What to notice

The facade reads Piedmontese: three storeys articulated by flat pilasters and string courses, with the piano nobile windows crowned by alternating curved and triangular pediments and the top floor framed in a lively rococo pattern that later Sassarese buildings copied. Look for the bricked-up central window of the upper floor, intended to frame the duke's coat of arms and titles — the marble record of them now sits in a Gothic window in the courtyard — and the broad central balcony, added in 1908. A cornice with projecting drains runs above a balustraded terrace, and across the square the former carriage house still displays the Manca arms with a Latin distich on the fall of the family's fortunes.

The Stanze del Duca on the ground floor evoke the atmosphere of the nineteenth century: Manca family treasures, Sassarese maiolica dinner services, antique pistols and personal care objects, and the four marble astronomical sculptures — Sun, Moon, Star and Comet — that once adorned the courtyard's citrus garden beside a little statuette of Bacchus as a child.

Context and history

The regional heritage portal dates the works from 1775 to a probable design by the Piedmontese engineer Valino and records completion about thirty years later, in 1805. The duke himself never lived there: he dictated his testament on 30 December 1804 and died in 1805, and his nephew Don Vincenzo Manca became the palace's first long-term resident. Structurally the palace has barely changed in two centuries, while its successive institutional uses reorganised the interiors; the round chapel where the family heard mass from a tribune, and the citrus garden with its well, were swept away by the Municipality after the 1900 purchase.

Excavations beneath the palace exposed five cellar rooms from sixteenth-century houses, with cisterns, wells and drainage channels that preserve the material life of Renaissance Sassari. The finds join the Manca family objects in the palace's historical record.