On the 27th of June the Crown Prince pushed forward the Ist Corps against Trautenau, and the main body of the Vth Corps upon Nachod. One division of the Guard supported each corps.
The Ist Corps, under Von Bonin, marched in two columns from Liebau and Schomberg, and was to concentrate at Parschnitz, about two miles east of Trautenau, where it was to rest two hours before moving upon the latter place.
Contrary to expectation, the left column arrived first at Parschnitz, the right (with the advanced-guard) being delayed by bad roads. Trautenau was as yet unoccupied by the Austrians; but instead of seizing the town and the heights which overlooked it, on the farther bank of the Aupa river, Von Clausewitz (commanding the left column) obeyed the strict letter of his orders, and waited at Parschnitz two hours, from 8 to 10 A. M., until the advanced guard of the right column arrived.
While Von Clausewitz was thus idly waiting, Mondl’s brigade of the Xth Austrian Corps arrived, and took up a strong position in the town and on the heights which commanded it. A stubborn fight took place before the Austrians could be dislodged; and Mondl fell back in good order upon the main body of the Xth Corps, which was hurrying towards Trautenau. Believing himself in complete possession of the field, Von Bonin, at 1 o’clock, declined the assistance of the 1st Division of Guards, which had hurried up to Parschnitz, and the division, after a halt of two hours, marched off to the left, towards Eypel. About half past 3 o’clock the entire Xth Corps, under Von Gablentz, arrived on the field, and made a vigorous attack upon the Prussians. Von Bonin’s left wing was turned; and, after fighting six hours, the Prussians were driven from the field, and retreated to the positions from which they had begun their march in the morning.
The Prussian defeat was due to two causes:
1. The delay of Von Clausewitz at Parschnitz, when common sense should have prompted him to exceed his orders, and seize the unoccupied town and heights of Trautenau. For two hours these positions were completely undefended by the Austrians, and could have been occupied by Von Clausewitz without firing a shot.[4]
2. The fatuity of Von Bonin in declining the assistance of the Guards. Von Bonin knew that Mondl had not been routed, that he had fallen back “slowly and fighting,” and he did not know what other force might be in his immediate front. He had no reason to expect that he would be allowed to pass through the defile without the most stubborn opposition. He knew that he had been opposed by a single brigade, and the plucky resistance of that small force should have made him suspicious that it had stronger forces at its back. His orders were to push on to Arnau, some twelve miles from Trautenau, and to carry out these orders it was necessary to sweep aside the opposition in his front. His declension of assistance when the firing had scarcely ceased, and when the aid of the Guards would have enabled him to clinch his success, was inexcusable. Like Beauregard at Shiloh, Von Bonin seems to have labored under the delusion that a victory could be sufficiently complete while the enemy’s army still remained in his front.[5]
The Austrians had certainly gained a brilliant victory. With a force of 33,600 men, they had defeated 35,000 Prussians, armed, too, with breech-loaders, while the victors had only muzzle-loading rifles. The loss of the Prussians was 56 officers and 1,282 men, while the Austrians lost 196 officers and more than 5,000 men. This disparity of loss illustrates the difference in the power of the old and the new rifles; it also speaks volumes for the pluck of the Austrian soldiers.
But the Austrian victory was doomed to be as fruitless as it was costly; for Prussian skill and valor on other fields obliterated all that was gained by Von Gablentz in the bloody combat of Trautenau.