Elements of Feudalism.--Rights of Treasure-trove, Sporting, Safe Conducts, Ransom, Disinheritance, &c.--Immunity of the Feudalists.--Dues from the Nobles to their Sovereign.--Law and University Dues.--Curious Exactions resulting from the Universal System of Dues.--Struggles to Enfranchise the Classes subjected to Dues.--Feudal Spirit and Citizen Spirit.--Resuscitation of the System of Ancient Municipalities in Italy, Germany, and France.--Municipal Institutions and Associations.--The Community.--The Middle-Class Cities (_Cités Bourgeoises_).--Origin of National Unity. So as to understand the numerous charges, dues, and servitudes, often as quaint as iniquitous and vexations, which weighed on the lower orders during the Middle Ages, we must remember how the upper class, who assumed to itself the privilege of oppression on lands and persons under the feudal System, was constituted. The Roman nobles, heirs to their fathers' agricultural dominions, succeeded for the most part in preserving through the successive invasions of the barbarians, the influence attached to the prestige of birth and wealth; they still possessed the greater part of the land and owned as vassals the rural populations. The Grerman nobles, on the contrary, had not such extended landed properties, but they appropriated all the strongest positions. The dukes, counts, and marquises were generally of German origin. The Roman race, mixed with the blood of the various nations it had subdued, was the first to infuse itself into ancient Society, and only furnished barons of a secondary order. These heterogeneous elements, brought together, with the object of common dominion, constituted a body who found life and motion only in the traditions of Rome and ancient Germany. From these two historical sources, as is very judiciously pointed out by M. Mary-Lafon, issued all the habits of the new society, and particularly the rights and privileges assumed by the nobility. These rights and privileges, which we are about to pass summarily in review, were numerous, and often curious: amongst them may be mentioned the rights of treasure-trove, the rights of wreck, the rights of establishing fairs or markets, rights of marque, of sporting, &c.