The Palazzo Regio[1] (English: "Royal palace"), also known as Viceregio (English: "Viceroyal palace"), is a historic building in Cagliari, the ancient residence of the representative of the king of Sardinia during the Aragonese, Spanish and Savoy domination and now the seat of the Metropolitan City of Cagliari.

The west facade, with the main portal in line with the staircase, was arranged by 1769, as evidenced by the inscription on the window bezel door that opens onto the central balcony.

Between 1799 and 1815 the palace was the official residence of the royal family and the court,[2] in exile from Turin occupied by Napoleon.

In 1885 the palace became property of the Province, who established its representative office and oversaw the restoration of the interior, in order to adapt to the new function.

In 1893 began the work of decoration on the Council room, by the Perugian Domenico Bruschi for the frescoes and dell'Angeletti for the stuccos.