The allies under Coburg moved to besiege Valenciennes, but first they desired to drive Lamarche from Famars to clear the way and prevent any intervention from the French.
Coburg's forces had recently been augmented by the newly arrived Anglo-Hanoverian contingent commanded by the 26-year-old Frederick, Duke of York; it was decided they would spearhead the main attack.
The camp at Famars lay on a ridge, three miles south of Valenciennes, and was bordered on the east by the river Rhonelle, the bridges and fords of which had been destroyed.
[2] The 1st Main Column of 16 battalions and 18 squadrons was led by the Duke of York and included the British Guards brigade under Gerard Lake, which had already seen action at Raismes on 8 May.
[5] As the fog lifted a beautiful dawn revealed their intended crossing point bristling with enemy infantry and artillery, which immediately opened fire.
His decision was to turn and counter-march his column towards Maresches two miles away to the south-east, leaving some Austrian guns and the troops already engaged behind to focus the attention of the French.
Fording the stream there unopposed, York's light cavalry ascended the low ridge to the south of the village to probe the French flank towards Querenaing.
Meanwhile, further north Ferraris's column had stormed the long entrenchment on the east bank ridge of the Famars position and driven the French back to the west of the Rhonelle.
Earlier in the day several squadrons of French cavalry had been seen threatening his flank, whereby they were charged by the Hanoverian Life Guards and routed after a stiff fight.
But flexibility is one of the valid principles of war, and one of the cardinal virtues of the general...The Duke of York is thus to be applauded rather than condemned for scrapping the first plan he was given and substituting another" [13]