In 1793, Roquebrune became French for the first time, changing the name from the original Roccabruna, but it was returned to Monaco in 1814. In 1804 Napoleon built a road along the coastline. This road connected the village to the rest of the Côte d’Azur, and eventually led to its merger with the smaller town of Cap-Martin. In 1848, there was a revolution related to the Italian Risorgimento, with the result that Roccabruna and Menton became free cities under the protection of the Savoy Prince. They hoped to be part of the Kingdom of Sardinia, but this did not occur, and the towns after two years of independence were put under Savoyan administration (but nominally still under the Prince of Monaco). They remained in a state of political limbo from 1849 until they were finally ceded to France by a plebiscite in 1861. Giuseppe Garibaldi, who promoted the union of the County of Nice to Italy, complained that the plebiscite was not done with “universal vote” and consequently Roccabruna was requested by Italian irredentists. As a consequence of these irredentism ideals, during World War II all the coastal area between Italy and Monte Carlo was occupied and administered by the Kingdom of Italy until September 1943.
The area became fashionable in the 1920s and 1930s leading to the construction of several notable buildings including Coco Chanel‘s La Pausa on Cap Martin, and Eileen Gray and Jean Badovici‘s E-1027. The Irish poet and Nobel Laureate William Butler Yeats died in the Hôtel Idéal Séjour in the neighboring town of Menton on January 28, 1939. In a letter to his wife, Yeats expressed his wish to be buried in a cemetery in Roquebrune for one year and then to be exhumed and reburied in Drumcliff, County Sligo, Ireland. However, his exhumation was delayed until September 1948 at which point they could no longer locate his remains. The French diplomat sent to oversee the reburial, Bernard Cailloux, said that it was “impossible to return the full and authentic remains of Mr Yeats” and proposed asking Dr Rebouillat, the local sworn pathologist, “to reconstitute a skeleton presenting all the characteristics of the deceased”. The remains of several other individuals, including an Englishman named Alfred Hollis, were assembled in a coffin and sent to Ireland for reburial. The entire affair was handled with secrecy on both the part of the French delegation responsible for the burial, and the poet’s family, so as not to elicit outrage from the Irish public. The incident was not publicly disclosed until the private archives of French diplomat Jacques Camílle Paris were turned over to the Irish Embassy in Paris in June 2015. The literary couple Romain Gary and Lesley Blanch lived in Roquebrune from 1950 to 1957.
Roquebrune-Cap-Martin has several villages and towns: St. Roman, practically a suburb of Monaco (but not part of Monaco proper, as it does not lie within the borders of Monaco), the residential areas of Cabbé, Bon Voyage and Serret, Roquebrune with its perched village and château, the posh Cap Martin peninsula and the modern seaside resort of Carnolès, with its long pebble beach bordering Menton. The whole area has a major tourism industry, particularly during the high season from April to October. Despite its name, the Monte Carlo Country Club is located in the municipality. It is the venue for the tennis Monte-Carlo Masters.