PIOMBINO  , a seaport of

Tuscany, Italy, in the province of Pisa, 8 m. by rail W.S.W. of Campiglia Marittima (which is 53 M . S.S.E. of Pisa), 62 ft. above sea-level, at the southern extremity of the peninsula of the Monte Massoncello . Pop . (1901), 5979 (town) ; 7 703 (commune) . It is surrounded by old walls, and contains some interesting Renaissance works by a master of about 1458 under the influence of Alberti . It is the port of embarcation for Elba, the nearest point of which is about 6 in. to the south-west, and originally belonged to Pisa . It gives the title of prince to the Buoncompagni Ludovisi family, who, however, no longer own it .