BOBBIO, episcopal see of Lombardy, Italy, province of Pavia, 322m. S.W. of Piacenza by road. Pop. (1921) town 2,26o, com mune 5,012. St. Columban became first abbot of Bobbio in 612 and died in 615. The church dedicated to him is Lombard (1 1 th 12th centuries), restored in the 13th century. The monastery had famous manuscripts now at Rome (Vatican), Milan and Turin. The cathedral archives contain documents of the loth and 11th centuries.