Prince Frederick Charles' arrangement was to have his three corps assembled on the line Vendôme--Morée by 6th January, and to order the XIIIth from Chartres on Brou.
[62] "Qui démoralisera le plus l'armée Allemande."
[63] In effect, with only the Corps-headquarter and the 13th Division--the 14th Division being still in the north-east.
The Germans had hoped to strike the enemy in his winter quarters; but General Chanzy had provided against surprise by a cordon of strong advanced positions. Nogent le Rotrou on his left was held by Rousseau's Division, and numerous bands of volunteers; from thence strong detachments were posted through Vibraye and St. Calais up to the Braye brook, where General Jouffroy had made a halt after the last attack on Vendôme; and on the right were General Barry at La Chartre and de Curten's Division at Château Renault.
Both wings of the German army came into collision with these forces on the 5th of January.
General Baumgarth (commanding 2nd Cavalry Brigade), on the German left, had assembled at St. Amand three battalions, two cavalry regiments and two batteries. The 57th regiment stormed Villeporcher in the direction of Château Renault, evacuated it in face of an attack by four French battalions, and finally recaptured and held it. This much, at any rate, was thus ascertained, that a not inconsiderable force of the enemy was assembled in front of the left wing of the German army now marching westward. While this movement was in prosecution General Baumgarth was thenceforth to undertake its protection, and with this object he was reinforced by the addition of the 6th Cavalry Division and the 1st Cavalry Brigade.
On the right wing the 44th Brigade, in its advance on Nogent le Rotrou, also had had a sharp encounter. It carried the enemy's position at La Fourche, and captured three guns, with a large number of prisoners. The main body of the Corps (the XIIIth) reached Beaumont les Autels and Brou, but the cavalry failed to penetrate the woods to the north of Nogent.
_January 6th._--At six in the morning the advanced guard of General Baumgarth's detachment started on march to Prunay, but the main body could not follow, since it was attacked in force at about half-past nine. With the object of observing the enemy, the infantry had been scattered in detached posts in a wide extension from Ambloy to Villeporcher, and only a small reserve remained at La Noue. The fight soon assumed greater expansion, and the defence with difficulty maintained the line Les Haies--Pias, the turning of the German left flank being seriously threatened, upon which the 6th Cavalry Division moved up, but could only enter the fight with one horse battery. The reserve, however, moved up along the high road to Château Renault and repulsed the enemy, who had already forced his way into Les Haies. But when he renewed the attack in strong columns and developed four batteries against the place, the reserve was obliged to retire behind the Brenne.