Ascanius seems to have been well disposed to do justice in the case, for he not only sought out Lavinia and induced her to return to the capital with her little son, but he finally concluded to give up Lavinium to her entirely, as her own rightful dominion, while he went away and founded a new city for himself. He accordingly explored the country around for a favorable site, and at length decided upon a spot nearly north of Lavinium, and not many miles distant from it. The place which he marked out for the walls of the city was at the foot of a mountain, on a tract of somewhat elevated ground, which formed one of the lower declivities of it. The mountain, rising abruptly on one side, formed a sure defense on that side: on the other side was a small lake, of clear and pellucid water. In front, and somewhat below, there were extended plains of fertile land. Ascanius, after having determined on this place as the site of his intended city, set his men at work to make the necessary constructions. Some built the walls of the city, and laid out streets and erected houses within. Others were employed in forming the declivity of the mountain above into terraces, for the cultivation of the vine. The slopes which they thus graded had a southern exposure, and the grapes which subsequently grew there were luxurious and delicious in flavor. From the little lake channels were cut leading over the plains below, and by this means a constant supply of water could be conveyed to the fields of grain which were to be sown there, for purposes of irrigation. Thus the place which Ascanius chose furnished all possible facilities both for maintaining, and also for defending the people who were to make it their abode. The town was called Alba Longa, that is long Alba. It was called long to distinguish it from another Alba. It was really long in its form, as the buildings extended for a considerable distance along the border of the lake.
Ascanius reigned over thirty years at Alba Longa, while Lavinia reigned at Lavinium, each friendly to the other and governing the country at large, together, in peace and harmony. In process of time both died. Ascanius left a son whose name was Iulus, while Æneas Silvius was Lavinia's heir.
There was, of course, great diversity of opinion throughout the nation in regard to the comparative claims of these two princes, respectively. Some maintained that Æneas the Trojan became, by conquest, the rightful sovereign of Latium, irrespective of any rights that he acquired through his marriage with Lavinia, and that Iulus, as the son of his eldest son, rightfully succeeded him. Others contended that Lavinia represented the ancient and the truly legitimate royal line, and that Æneas Silvius, as her son and heir, ought to be placed upon the throne. And there were those who proposed to compromise the question, by dividing Latium into two separate kingdoms, giving up one part to Iulus, with Alba Longa for its capital, and the other, with Lavinium for its capital, to Æneas Silvius, Lavinia's heir. This proposition was, however, overruled. The two kingdoms, thus formed would be small and feeble, it was thought, and unable to defend themselves against the other Italian nations in case of war. The question was finally settled by a different sort of compromise. It was agreed that Latium should retain its integrity, and that Æneas Silvius, being the son both of Æneas and Lavinia, and thus representing both branches of the reigning power, should be the king, while Iulus and his descendants forever, should occupy the position, scarcely less inferior, of sovereign power in matters of religion. Æneas Silvius, therefore, and his descendants, became kings, and as such commanded the armies and directed the affairs of state, while Iulus and his family were exalted, in connection with them, to the highest pontifical dignities.
This state of things, once established, continued age after age, and century after century, for about four hundred years. No records, and very few traditions in respect to what occurred during this period remain. One circumstance, however, took place which caused itself to be remembered. There was one king in the line of the Silvii, whose name was Tiberinus. In one of his battles with the armies of the nation adjoining him on the northern side, he attempted to swim across the river that formed the frontier. He was forced down by the current, and was seen no more. By the accident, however, he gave the name of Tiber to the stream, and thus perpetuated his own memory through the subsequent renown of the river in which he was drowned. Before this time the river was called the Albula.
Another incident is related, which is somewhat curious, as illustrating the ideas and customs of the times. One of this Silvian line of sovereigns was named Alladius. This Alladius conceived the idea of making the people believe that he was a god, and in order to accomplish this end he resorted to the contrivance of imitating, by artificial means, the sound of the rumbling of thunder and the flashes of lightning at night from his palace on the banks of the lake at Alba Longa. He employed, probably, for this purpose some means similar to those resorted to for the same end in theatrical spectacles at the present day. The people, however were not deceived by this imposture, though they soon after fell into an error nearly as absurd as believing in this false thunder would have been; for, on an occasion which occurred not long afterward, probably that of a great storm accompanied with torrents of rain upon the mountains around, the lake rose so high as to produce an inundation, in which the water broke into the palace, and the pretended thunderer was drowned. The people considered that he was destroyed thus by the special interposition of heaven, to punish him for his impiety in daring to assume what was then considered the peculiar attribute and prerogative of supreme divinity. In fact, the rumor circulated, and one historian has recorded it as true, that Alladius was struck by the lightning which accompanied the storm, and thus killed at once by the terrible agency which he had presumed to counterfeit, before the inundation of the palace came on. If he met his death in any sudden and unusual manner, it is not at all surprising that his fate should have been attributed to the judgment of God, for thunder was regarded in those days with an extreme and superstitious veneration and awe. All this is, however, now changed. Men have learned to understand thunder, and to protect themselves from its power; and now, since Franklin and Morse have commenced the work of subduing the potent and mysterious agent in which it originates, to the human will, the presumption is not very strong against the supposition that the time may come when human science may actually produce it in the sky-as it is now produced, in effect, upon the lecturer's table.
At last, toward the close of the four hundred years during which the dynasty of the Silvii continued to reign over Latium, a certain monarch of the series died, leaving two children, Numitor and Amulius. Numitor was the eldest son, and as such entitled to succeed his father. But he was of a quiet and somewhat inefficient disposition, while his younger brother was ardent and ambitious, and very likely to aspire to the possession of power. The father, it seems, anticipated the possibility of dissension between his sons after his death, and in order to do all in his power to guard against it, he endeavored to arrange and settle the succession before he died. In the course of the negotiations which ensued, Amulius proposed that his father's possessions should be divided into two portions, the kingdom to constitute one, and the wealth and treasures the other, and that Numitor should choose which portion he would have. This proposal seemed to have the appearance, at least, of reasonableness and impartiality; and it would have been really very reasonable, if the right to the inheritance thus disposed of, had belonged equally to the younger and to the elder son. But it did not. And thus the offer of Amulius was, in effect, a proposition to divide with himself that which really belonged wholly to his brother.