On 18 February 1814, Schwarzenberg ordered Frederick William to hold Montereau until evening. Accordingly, the Crown Prince placed 8,500 foot soldiers, 1,000 horsemen and 26 artillery pieces on the north bank of the Seine River. The defending force included an Austrian brigade. The first French attacks in the morning were driven off, but by the mid-afternoon Napoleon was on the scene with 30,000 troops and 70 cannons. Frederick William ordered a retreat, but the movement quickly degenerated into a mad dash for safety across the single bridge with French cavalry in hot pursuit. The Allies lost 2,600 killed and wounded, plus 3,400 soldiers and 15 field pieces captured. The French lost 2,000 but captured the vital bridge intact. The Württembergers reported 806 killed and wounded, not counting prisoners. On 25 March, the main Allied army came upon a 19,000-man French corps by surprise in the Battle of Fère-Champenoise. Leading the advance, Frederick William decided not to wait for his infantry to catch up but to attack with his cavalry alone. The result was a crushing Allied victory as the French corps suffered losses of 2,000 killed and wounded while losing 4,000 prisoners, 45 cannons and 100 ammunition wagons. A nearby 4,300-strong French division with 16 cannons was also caught and completely wiped out. The Allies sustained 2,000 casualties out of 28,000 men and 80 guns engaged. At the Battle of Paris on 30 March, 6,500 Württembergers fought, losing 160 killed, wounded and captured.