An attempt to enumerate the architectural monuments of France is not possible without due consideration being given to the topographical divisions of the country, which, so far as the early population and the expression of their arts and customs is concerned, naturally divides itself into two grand divisions of influences, widely dissimilar.

Historians, generally, agree that the country which embraces the Frankish influences in the north, as distinct from that where are spoken the romance languages, finds its partition somewhere about a line drawn from the mouth of the Loire to the Swiss lakes. Territorially, this approaches an equal division, with the characteristics of architectural forms well nigh as equally divided. Indeed, Fergusson,who in his general estimates and valuations is seldom at fault, thus divides it:—"on a line which follows the valley of the Loire to a point between Tours and Orleans, then southwesterly to Lyons, and thence along the valley of the Rhône to Geneva."

With such a justification, then, it is natural that some arbitrary division should be made in arranging the subject matter of a volume which treats, in part only, of a country or its memorials; even though the influences of one section may not only have lapped over into the other, but, as in certain instances, extended far beyond. As the peoples were divided in speech, so were they in their manner of building, and the most thoroughly consistent and individual types were in the main confined to the environment of their birth. A notable exception is found in Brittany, where is apparent a generous admixture of style which does not occur in the churches of the first rank; referring to the imposing structures of the Isle de France and its immediate vicinity. The "Grand Cathedrals" of this region are, perhaps, most strongly impressed upon the mind of whoever takes something more than a superficial interest in the subject as the type which embodies the loftiest principles of Gothic forms, and, as such, they are perhaps best remembered by that very considerable body of persons known as intelligent observers.

The strongest influences at work in the north from the twelfth century onward have been in favour of the Gothic or pointed styles, whilst, in the south, civic and ecclesiastical architecture alike were of a manifest Byzantine or Romanesque tendency. No better illustration of this is possible than to recall the fact that, when the builders of the fifteenth century undertook to complete that astoundingly impressive choir at Beauvais, they sought to rival in size and magnificence its namesake at Rome, which, under the care of the Pontiff himself, was then being projected. Thus it was that this thoroughly Gothic structure of the north was to stand forth as the indicator of local influences, as contrasted with the Italian design and plans of the St. Peter's of the south.