The origins of its name is linked to the existence of a campsite during the Roman era called Campus Maior.
Not much is known of the High Medieval period, but the habitation reappeared in historical documents during 1150 by the name of Campum Maiorem.
Being loyal to the Normans (XI and XI centuries) and the Swabians (XIII century), Campomaggiore opposed the Angioiniansans (1268) descent, paying for this through siege and destruction by French troops. The new sovereigns made it a fief of powerful families: the Beaumont and Tournespèe.
In 1673 it passed over to Count Gerardo Antonio Rendina, following its abandonment around the 1600s after a long period of economic depression.
Campomaggiore was seat of a Rivendita Carbonara (Smaller city associations linked to the Carbonari movement which promoted independent ideas) and enthusiastically participated in the Renaissance and Unitarian motions which led it into the Reign of Italy during 1861.
In 1885 it was abandoned by its inhabitants due to danger of a landslide and the village was reconstructed further up the hill.
One passes through Campomaggiore to enjoy the beauty of its territory, the panoramic views from the "Dolomiti Lucane" and the naturalistic richness of the area.
The current City has recent foundations (end of XIX century), but one can visit the Chiesa Madre (Mother Church) which hosts a painting depicting the Madonna with Child that came from the ancient church which was destroyed by a landslide.
The remains of Palazzo Baronale offer an impressive visit to the area where the old village was located. Not too far from here, one can also enjoy a visit to the Casino della Contessa, a Marquis's villa.
Chiesa Madre della Madonna del Carmelo (1938); the ruins of Palazzo Baronale; Casino della Contessa.