Again the states general, that is the convention of those who represent the people, divided into classes according to Gunther, consist of three orders, which are the Prelates, the Nobles, and Deputies of large towns. In some places, they serve as a greater council to the king, to communicate to him the complaints of his people, which might otherwise be kept from his ears; leaving him at the same time full liberty to exercise his own discretion upon the matters so communicated. But in other places they form a body with power to inquire into the prince's measures, and to make laws. Many think that in order to know whether a prince be sovereign or not, it is proper to inquire whether his title to the crown is by election or inheritance. For they maintain that hereditary monarchies alone are sovereign. But this cannot be received as a general criterion. For sovereignty consists not merely in the TITLE to the throne, which only implies that the successor has a right to all the privileges and prerogatives that his ancestors enjoyed, but it by no means affects the nature or extent of his powers. For right of election conveys all the powers, which the first election or appointment conferred. Among the Lacedaemonians the crown was hereditary even after the institution of the Ephori. And Aristotle describing the chief power of such a state, says, "Of these kingdoms, some are hereditary, and others elective." In the heroic times most of the kingdoms in Greece were of this description, as we are informed by Thucydides. The Roman empire, on the contrary, even after the power of the Senate and people was abolished, was given or confirmed by election. XI. Another caution is necessary. For to inquire into the matter of a right is not the same thing as to examine the nature of its tenure. A distinction which takes place not only in corporeal but in incorporeal possessions. For a right of passage or carriage through a ground is no less a right than that which entitles a man to the possession of the land itself. Now some hold these privileges by a full right of property, some by an usufructuary, and others by a temporary right. Thus the Roman Dictator had sovereign power by a temporary right. In the same manner kings, both those who are the first of their line elected to the throne, and those who succeed them in the lawful order, enjoy an usufructuary right, or inalienable right. But some sovereigns hold their power by a plenary right of property; when for instance it comes into their possession by the right of lawful conquest, or when a people, to avoid greater evils, make an unqualified surrender of themselves and their rights into their hands.