At last, when nigh half their number had fallen, the rest, exhausted, broken, and in disorder, fell suddenly back. Gustavus in person then led on his Finlanders, but these, after a struggle as obstinate and heroic as that of their predecessors, in their turn fell back baffled. The Livonians next made the attempt, but in vain. In the meantime a sharp conflict had taken place between the Imperial cavalry and the Swedish left wing. Wallenstein's cuirassiers, hidden by the smoke, charged right through a column of Swedish infantry; but this success was counterbalanced by the rout of Cronenberg's Invincibles, a magnificent regiment of 1500 horsemen, by 200 Finland troopers. The troops of Duke Bernhard of Weimar, among whom were still the Scottish regiments of Hamilton and Douglas, marched against the heights which commanded the Alte Veste, and drove back the Imperialists with great loss. Five hundred musketeers of the Green Brigade under Colonel Munro then pushed gallantly forward and posted themselves far in advance, resisting all attempts of the Imperialists to drive them back, until Lieutenant Colonel Sinclair, who was now in command of Munro's own regiment, brought it forward to his assistance. Until the next morning this body of one thousand men maintained the ground they had won in spite of all the efforts of the Imperialists to dislodge them. Colonel Munro was severely wounded in the left side. Lieutenant Colonel Maken, Capt. Innis, and Capt. Traill were killed, and an immense number of other Scottish officers were killed and wounded. The news was brought down to Gustavus of the advantage gained by Duke Bernhard, but he was unable to take advantage of it by moving his army round to that position, as he would have exposed himself to a counter attack of the enemy while doing so. He therefore launched a fresh column of attack against the Alte Veste. This was followed by another and yet another, until every regiment in the army had in its turn attempted to storm the position, but still without success. The battle had now raged for ten hours, and nightfall put an end to the struggle. Hepburn had all day ridden behind the king as a simple cavalier, and had twice carried messages through the thick of the fire when there were no others to bear them, so great had been the slaughter round the person of the king. It was the first time that Gustavus had been repulsed, and he could hardly yet realize the fact; but as messenger after messenger came in from the different divisions he discovered how terrible had been his loss. Most of his generals and superior officers had been killed or wounded, 2000 men lay dead on the field, and there were nigh three times that number of wounded.