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215. may now return to the points of necessary history, having our ideas fixed within accurate limits as to the meaning of the word Liberty; and as to the relation of the passions which separated the Guelph and Ghibelline to those of our own days.

The Lombard or Guelph league consisted, after the accession of Florence, essentially of the three great cities—Milan, Bologna, and Florence; the Imperial or Ghibelline league, of Verona, Pisa, and Siena. Venice and Genoa, both nominally Guelph, are in furious contention always for sea empire; while Pisa and Genoa are in contention, not so much for empire, as honour. Whether the trade of the East was to go up the Adriatic, or round by the Gulf of Genoa, was essentially a mercantile question; but whether, of the two ports in sight of each