The Mexican clergy allied themselves with the civil authorities on this issue; the bishops excommunicated Hidalgo and his companions, and furious sermons were preached against them in the churches. The Inquisition renewed all the charges against Hidalgo which they had found in 1800, and cited him to appear before them. Yet his cry was not against religion, but bad government. The Bishop of Michoacan also excommunicated him, and set at once upon preparing the defence of Valladolid as soon as he heard the echo of the Grito de Dolores. In fact, excomunication from various dioceses rattled round the heads of the insurgents, who kept on their way little heeding so much mighty sound. On the 17th of October the Independent troops entered Valladolid without resistance, the valiant bishop having fled to Mexico at the first sign of his approach, together with the civil and military authorities, and many Europeans settled in that hitherto peaceful town. Hidalgo compelled the canons in the absence of the bishop to remove the excommunication fulminated against him and his companions. He established his authority in the place, and in ten days, with his ever-swelling army, took the bold step of advancing upon the capital. As this terrible band approached, the inhabitants of Mexico, remembering Guanajuato, were filled with fear. Some hid their plate in the convents; others hid themselves; many fled the city. The brave and military viceroy sent his army forward, commanded by Trujillo. Upon the Monte de la Cruces, outside of the city, the forces met, and a terrible battle ensued. The insurgents were swept by the fire of their opponents' artillery; but their immense numbers bore up against all resistance, inspired by enthusiasm in the cause, and triumphed completely, the soldiers of the viceroy abandoning the field with many losses. The commanding general, Trujillo, owed his life to his excellent horse, which bore him swiftly back to Mexico. Had Hidalgo marched immediately upon Mexico, then in a state of panic and confusion most advantageous to his cause, it might have been for him the victorious end of the struggle. Unfortunately, he decided to withdraw towards Querétaro, fearing the approach of reinforcements from the capital. In fact, at Aculco he was vigorously attacked by the division of Calleja arriving from the north, and, after a hot combat, the insurgents were overcome, losing all their artillery and many men. The huge army melted, and Hidalgo went back to Valladolid with but a handful of men. Calleja followed Allende to Guanajuato, where he attacked him with the same vigor, so that he was obliged to abandon the city and retreat to Zacatecas, which had already proclaimed independence. A cruel retaliation was taken by Calleja upon the inhabitants of Guanajuato.