After the death of Abderamus the empire was disturbed by revolts, and by wars between the new caliph and his brothers, his uncles, or other princes of the royal blood. These civil wars {58} were inevitable under a despotic government, where not even the order of succession to the throne was regulated by law. To be an aspirant to the supreme authority of the state, it was sufficient to belong to the royal race; and as each of the caliphs, almost without exception, left numerous sons, all these princes became the head of a faction, every one of them established himself in some city, and, declaring himself its sovereign, took up arms in opposition to the authority of the caliph. From this arose the innumerable petty states that were created, annihilated, and raised again with each change of sovereigns. Thus also originated the many instances of conquered, deposed, or murdered kings, that make the history of the Moors of Spain so difficult of methodical arrangement and so monotonous in the perusal. Hacchem, and, after him, his son Abdelazis-el-Hacchem retained possession of the caliphate notwithstanding these unceasing dissensions. The former finished the beautiful mosque commenced by his father, and carried his arms into France, in which kingdom his generals penetrated as far as Narbonne. The latter, Abdelazis-el-Hacchem less fortunate than his predecessor, did not {59} succeed in opposing the Spaniards and his refractory subjects with unvarying success. His existence terminated in the midst of national difficulties, and his son Abderamus became his successor. Abderamus II. was a great monarch, notwithstanding the fact that, during his reign, the power of the Christians began to balance that of the Moors. The Christians had taken advantage of the continual divisions which prevailed among their former conquerors. Alphonso the Chaste, king of Asturia, a valiant and politic monarch, had extended his dominions and refused to pay the tribute of the hundred young maidens. Ramir, the successor of Alphonso, maintained this independence, and several times defeated the Mussulmans. Navarre became a kingdom, and Aragon had its independent sovereigns, and was so fortunate as to possess a government that properly respected the rights of the people.[8] The governors of Catalonia, until then subjected to the kings of France, took advantage of the feebleness of Louis le Debonnaire to render themselves independent. In fine, all the north of Spain declared itself in opposition to the Moors, {60} and the south became a prey to the irruptions of the Normans.