Dolceacqua is a comune in the Province of Imperia in the Italian region Liguria, located about 120 kilometres southwest of Genoa and about 35 kilometres west of Imperia, on the border with France.

The first official document that quotes Dolceacqua dates back to 1151, when the accounts of Ventimiglia had the first heart of the castle built at the top of the rocky speron overlooking the creek where the valley tightens and forks: the Roja valley on one side, the Val Nervia on the other.

In 1270 Dolceacqua was purchased by the Doria of Genoa and over the centuries the “Earth” was developed in the town that stands at the foot of the castle.