Palazzo Cesi was built in the first half of the 16th century at the behest of Gian Giacomo Cesi, Count of Terre Arnolfe.
The building stands on the remains of an ancient 14th-century fortress, the fortified walls of which were used as foundations. The palace consists of two main bodies: the older one, probably dating back to the 15th century, is located uphill from the road, while the second, more recent, faces the valley of Terni.
These two bodies are connected by a hanging corridor, supported by an arch below and each features a perfectly preserved ashlar doorway.
Gerberto Cesi, 13th Duke of Acquasparta, died in 1888 leaving no descendants and his inheritance passed to his sister Elvira, who died in 1924. Elvira married Marquis Gaspare Cittadini, thus giving rise to the Cittadini Cesi family.
Duchess Elvira Cesi transformed the olive grove adjacent to the palace into an elegant terraced park, in a romantic style, enriched with plants that were fashionable in the early 20th century: palm trees, horse chestnuts and Madonna lily bulbs. The garden also included a typical “romantic cove”.
