Antioch, however, soon arose again from its ruins, under the protection of the emperors of the West. Great and well-situated cities are not easily destroyed past recovery. Antioch became once more rich and populous; but it seemed to be its fate to succumb to the attacks of barbarians. It was again besieged about a hundred years after the above-stated catastrophe, by the Saracens, before the eyes of Prince Constantine, son of the emperor Heraclius. The infidels approached a bridge at a short distance from Antioch, called the Bridge of Iron. Two towers, each furnished with three hundred soldiers, were intrusted with the defence of it. These degenerate Romans surrendered their posts to the enemy; Constantine, in despair, could trust neither the courage nor the fidelity of his troops. Very unlike the Romans of the days of Pyrrhus, who would have thought themselves dishonoured by taking advantage of a crime, this prince resorted to the baseness of assassination as the surest means of averting the storm which threatened Antioch. He hoped to terminate the war by assassinating the caliph who directed the enterprises of the Saracens. An assassin was sent to Medina. Trembling at the sight of Omar, the wretch confessed his intentions, and the name of the person who employed him. Omar, so far from losing his life, acquired the honour of pardoning the man who attempted it: the Christian prince acquired the disgrace of having attempted a crime, and failed in it. The two armies encamped near Antioch. A general, named Nestorius, commanded the Romans: endowed with the valour of a soldier, he for a moment forgot that his life belonged to his army, and challenged the bravest of the Mussulmans to single combat. Dames, who had acquired the reputation of being invincible at the siege of Aleppo, presented himself. His horse stumbling whilst he was engaged with his enemy, Dames was seized and conveyed a prisoner to the tent of the challenger. Nestorius, proud of this chance victory, was desirous of a fresh triumph. He offered a second challenge, which was accepted by Dehac. The two champions fought for a long time with equal success; when, exhausted by fatigue, and their horses being jaded and breathless, they separated to recruit their strength. During the second conflict, Dames, having deceived the slaves who guarded him, contrived to escape, and rejoined his comrades. A few days after, the two armies engaged, and the Romans were cut to pieces after a severe and bloody battle. A fresh perfidy of Youckinna, formerly governor of Aleppo, contributed greatly to the defeat of the Romans. This traitor guarded in Antioch Derar and two hundred other Mussulman prisoners. At the moment of the combat, he set them at liberty, joined them to the troop he commanded, and ranged himself under the standard of Mahomet. At the sight of these new enemies, the Roman legions lost all courage; they fancied the whole population of Antioch was pouring out upon them.