The Mexicans, on the death of Montezuma, had raised to the throne his brother, Cuitlahua, who showed himself worthy of the choice. After expelling Cortés from the capital, he repaired the fortifications, provided magazines, caused long spears to be made, headed with the swords and daggers taken from the Spaniards, gathered the people from the provinces, and exhorted them to prove faithful. He also sent embassies to Tlascala, to persuade that people to break off their alliance with men who were the avowed enemies of the gods, and who would assuredly impose on them the yoke of bondage. It was no easy matter for Cortés to withstand the influence of such reasonable suggestions on the minds of the Tlascalans; and had he not been on the spot, their fidelity might perhaps have wavered.
But, while Cuitlahua was thus planning the defence of his kingdom, and performing the part of a wise and valiant prince, he was attacked by the small-pox, a disease introduced, it is said, by the Spaniards, and fell a victim to this scourge of the natives of the New World. He was succeeded by his nephew, Guatemozin, a young man of great ability and valor.
In the mean time, Cortés was busily employed in making arrangements for the renewal of operations against Mexico. Reinforcements of troops, arms, and ammunition came in from various quarters. The strongholds on the Mexican frontier were reduced, and the people of the surrounding country, who had made demonstrations of hostility, were summarily chastised and subdued. Cortés likewise gave orders for the construction of thirteen brigantines at Tlascala, which, when finished, might be taken to pieces and transported to Mexico, to be employed in the siege of the city.
His arrangements being now completed, on the 24th of December, 1520, Cortés set forward on his march. On reëntering the Mexican territories, he found that various preparations had been made to oppose him. He, however, forced his way, and took possession of Tezcuco, the second city of the empire, situated on the lake about twenty miles from Mexico. Fixing his head-quarters here, he now occupied himself in the subjugation of the towns around bordering on the lake. By treating the inhabitants kindly, he won them to himself, and, as they had been originally independent, and were reduced by the Mexican power, he promised them a restoration to their former privileges, subject only to the sway of the king of Castile. In this manner, the Mexican monarch and those who remained faithful to him became more and more limited in their resources, while Cortés was gaining additional strength.
Having finally completed the preparation of the materials for his brigantines, he sent a strong convoy to transport them to Tezcuco. The Tlascalans furnished him 8,000 tamanes, or carriers, and appointed 15,000 warriors to accompany the Spanish troops. The materials were carried sixty miles across the mountains, and finally reached Tezcuco in safety.
A new reinforcement of soldiers, with horses, battering cannon, and ammunition, now also joined him from Hispaniola, whither he had sent to raise recruits. The brigantines were soon finished; for the purpose of floating them into the lake, a canal, two miles long, was made by deepening a small rivulet, and amid shouts, firing of cannon, and religious ceremonies, they were launched.
The force, destined for this final attack on Mexico, amounted to 86 horsemen and 818 foot-soldiers, of whom 118 were armed with muskets or crossbows; a train of artillery of three battering cannon, and fifteen field pieces. Each brigantine was manned by twenty-five Spaniards, and bore one of the small cannon. These Cortés commanded in person. The points selected for the attack were, from Tepejacac on the north side of the lake, from Tacuba on the west, and Cojohuacan towards the south, corresponding to the causeways which have been heretofore mentioned. By cutting off the aqueducts, the inhabitants were reduced to great distress; and the efforts of the Mexicans to destroy the fleet were entirely unsuccessful.
Cortés, now master of the lake, pushed on his attack from all points, broke down the barricades, forced his way over the trenches, and sought to penetrate into the heart of the city. The Mexicans, though losing ground every day, repaired the breaches by night, laboring with incredible effort to recover their posts. With his small force, the Spaniard dared not attempt a lodgment where he might be hemmed in by numbers, and thus defeated. Finally, however, his troops, by the most desperate assaults, penetrated into the city; a success which was shortly turned into a disastrous and nearly fatal defeat, in consequence of the commander of one of the divisions, Juan de Alderete, neglecting his instructions to fill up the canals and gaps in the causeways, as he proceeded, in order to secure the means of retreat.
Guatemozin, hearing of this, with great presence of mind, directed the Mexicans to retire, thus drawing forward the unwary Spaniards; while chosen bodies of troops were judiciously posted in various places to act when needed. The Spaniards eagerly pressed on, till, at the signal, a stroke of the great drum in the temple of the war-god, the Mexicans poured upon them with the utmost fury, and driving them on to the causeway, horsemen, foot, and Tlascalans plunged into the gap, and Cortés was unable to rally them. The rout became general, and he himself was wounded, and with difficulty saved from being led off captive by the Mexicans. Besides those who perished in the conflict, above sixty Spaniards fell into the hands of the victors. These, as night drew on, illuminated their city, and compelled their captives to dance before the image of the war-god. They then sacrificed them, their shrieks reaching the ears of their companions, who were unable to render them any assistance.