Rank of States.
§ 117. Although the States are equals as International Persons, they are nevertheless not equals as regards rank. The differences as regards rank are recognised by International Law, but the legal equality of States within the Family of Nations is thereby as little affected as the legal equality of the citizens is within a modern State where differences in rank and titles of the citizens are recognised by Municipal Law. The vote of a State of lower rank has legally as much weight as that of a State of higher rank. And the difference in rank nowadays no longer plays such an important part as in the past, when questions of etiquette gave occasion for much dispute. It was in the sixteenth and seventeenth centuries that the rank of the different States was zealously discussed under the heading of droit de préséance or questions de préséance. The Congress at Vienna of 1815 intended to establish an order of precedence within the Family of Nations, but dropped this scheme on account of practical difficulties. Thus the matter is entirely based on custom, which recognises the following three rules:
(1) The States are divided into two classes—namely, States with and States without royal honours. To the first class belong Empires, Kingdoms, Grand Duchies, and the great Republics such as France, the United States of America, Switzerland, the South American Republics, and others. All other States belong to the second class. The Holy See is treated as though it were a State with royal honours. States with royal honours have exclusively the right to send and receive diplomatic envoys of the first class[189]—namely, ambassadors; and their monarchs address one another as "brothers" in their official letters. States with royal honours always precede other States.
(2) Full-Sovereign States always precede those under suzerainty or protectorate.
(3) Among themselves States of the same rank do not precede one another. Empires do not precede kingdoms, and since the time of Cromwell and the first French Republic monarchies do not precede republics. But the Roman Catholic States always concede precedence to the Holy See, and the monarchs recognise among themselves a difference with regard to ceremonials between emperors and kings on the one hand, and, on the other, grand dukes and other monarchs.
The "Alternat."
§ 118. To avoid questions of precedence, on signing a treaty, States of the same rank observe a conventional usage which is called the "Alternat." According to that usage the signatures of the signatory States of a treaty alternate in a regular order or in one determined by lot, the representative of each State signing first the copy which belongs to his State. But sometimes that order is not observed, and the States sign either in the alphabetical order of their names in French or in no order at all (pêle-mêle).
Titles of States.
§ 119. At the present time, States, save in a few exceptional instances, have no titles, although formerly such titles did exist. Thus the former Republic of Venice as well as that of Genoa was addressed as "Serene Republic," and up to the present day the Republic of San Marino[190] is addressed as "Most Serene Republic." Nowadays the titles of the heads of monarchical States are in so far of importance to International Law as they are connected with the rank of the respective States. Since States are Sovereign, they can bestow any titles they like on their heads. Thus, according to the German Constitution of 1871, the Kings of Prussia have the title "German Emperor"; the Kings of England have since 1877 borne the title "Emperor of India"; the Prince of Servia assumed in 1881, that of Roumania in 1882, that of Bulgaria in 1908, and that of Montenegro in 1910, the title "King." But no foreign State is obliged to recognise such a new title, especially when a higher rank would accrue to the respective State in consequence of such a new title of its head. In practice such recognition will regularly be given when the new title really corresponds with the size and the importance of the respective State.[191] Servia, Roumania, Bulgaria, and Montenegro had therefore no difficulty in obtaining recognition as kingdoms.