In the battle that ensued, Kahina was killed; the Berbers were overwhelmingly defeated; and the whole of the refractory province again invoked the clemency of the victor. But the same evil genius which, from first to last, attended the administration of the Moslem governors of Africa, now began to disturb the fortunes of Hassan. Abd-al-Aziz, the brother of the Khalif, was appointed to the viceroyalty of Egypt, upon which the jurisdiction of Africa was made dependent; and Hassan was summoned to Damascus, to answer serious accusations of tyrannical conduct which had been lodged against him. But the sight of the spoil wrested from the Berbers, the present of female captives of extraordinary beauty, the plausible explanations of his conduct which his fertile ingenuity suggested, and the glowing accounts of his successes, soon restored the distinguished commander to the favor of his sovereign, and Hassan was reinvested with the government of Africa with increased authority. On the return of the latter, while passing through Egypt, Abd-al-Aziz demanded the surrender of his commission under color of the supremacy formerly attached to the viceroyalty of that country, and by which the rest of Mohammedan Africa was claimed as a dependency. Enraged by his refusal, the governor arbitrarily deprived Hassan of his commission, tore it in pieces before his face, and, in defiance of the royal authority, declared the office vacant, and appointed at his own instance Musa-Ibn-Nosseyr commander of the armies of the West.