Located in a privileged position from the panoramic point of view, away from major roads, has remained until modern times untouched, with its pine forests and cliffs close to the Ligurian Sea.

Castiglioncello has become famous in the sixties of last century as a vacation destination of important members of the world of cinema, such as Alberto Sordi, Guido Mannari and Marcello Mastroianni.

Already outpost of the Medici, Grand Dukes of Tuscany, that here in the XVII century made build a tower of sighting on the promontory, is a famous bathing locality since the half of the nineteenth century; moreover between its sheltered cale and the thick Mediterranean scrub found development of the current pictorial Macchiaioli, which is expressed through the works of Giovanni Fattori, Odoardo Borrani, Silvestro Lega, Telemaco Signorini, Giuseppe Abbati and many others, who used to vacation in Castiglioncello, often guests of the patron Diego Martelli, and whose paintings often portray the town and the surrounding hills.

The Baron built the castle on land belonging to Diego Martelli purchased at the same time as all his possessions, with the specific intent to create the center of one of the first seaside resorts in the late nineteenth century.

The tourist fortune of Castiglioncello began in the second half of the nineteenth century, when struck by the mildness of the climate and the beauty of the landscape, Diego Martelli, art critic and patron, established his residence there.