BISCEOLIE (perhaps anc. Natiolum)  , a seaport and .episcopal see of Apulia, Italy, on the E.S.E. coast, in the province of Bari, from which it is distant 211 M. by rail . Pop . (1901) 30,885 . Two towers, one some 90 ft. high, of a once strong Norman castle still remain; the cathedral belongs to the same period . The church of S . Margherita, founded in 1197, has fine canopied Gothic tombs of the Falcone family .