 After the fall of the Republic of Genoa in 1797, the new municipality of Diano Marina rejoined the Ligurian Republic.Annexed to the First French Empire from 1805 to 1814, it became part of the Department of Montenotte.In 1815, the territory was incorporated into the Kingdom of Sardinia, as established by the Congress of Vienna in 1814, and subsequently added to the Kingdom of Italy in 1861.