This Officer placed a Company on the south or French side of Frasne, for the purpose of preventing as long as possible the entrance of the French into the Village. BYLEVELD's Battery took post on the north side of the Village, and the remaining Companies of the 2nd Battalion of the 2nd Regiment of Nassau drew up in its support. Two guns were upon the road, and three on each side of it. After some time, the Lancers, having been reinforced, compelled the Company before mentioned to retire through the Village and fall back upon the main body, which then opened a vigorous fire, by which this front attack by the French Cavalry was defeated. The latter then made a disposition to turn the Left Flank of these troops; on perceiving which Major NORMANN and Captain BYLEVELD resolved upon falling back to within a short distance in front of Quatre Bras. The retreat was conducted in excellent order, the Battery continuing to fire along the high road. Quatre Bras was the _rendezvous_ of the Second Brigade; and the 3rd Battalion of the 2nd Regiment of Nassau, which was cantoned in its immediate vicinity, had already, without waiting for the receipt of superior Orders, assembled at that point. Prince BERNHARD, on arriving there with the Regiment of Orange-Nassau, and learning the particulars of the engagement at Frasne, assumed the command as Senior Officer, and being fully impressed with the importance of securing the point of junction of the high road from Charleroi to Brussels, with that from Namur to Nivelles, came to the resolution of making a firm stand at Quatre Bras. This decision accorded entirely with the spirit of the Orders which had in the meantime been despatched from Braine le Comte, the Dutch-Belgian Head Quarters, on the receipt of intelligence of the French having crossed the Sambre. General DE PERPONCHER, who commanded the Division, had also approved of the Prince's determination, and Colonel GÖDECKE who was at Hautain le Val, and who had hitherto commanded the Second Brigade, now tendered his command to his Serene Highness, who immediately accepted it. The Prince pushed forward the 3rd Battalion of the 2nd Regiment of Nassau, in Column, upon the high road towards Frasne, detached two Companies of the 1st Battalion, and the Volunteer _Jägers_, to the defence of the Wood of Bossu, and the remaining Companies on the high road towards Hautain le Val; and posted the remainder of the Brigade at Quatre Bras, along the Namur road. Of BYLEVELD's Horse Battery, four guns were posted in advance in the direction of Frasne, two on the road to Namur, and two in rear of the main body.