The Battle of Stirling Bridge was a battle of the First War of Scottish Independence. On 11 September 1297, the forces of Andrew Moray and William Wallace defeated the combined English forces of John de Warenne and Hugh de Cressingham near Stirling, on the River Forth. De Warenne had won a victory over the aristocracy of Scotland at the Battle of Dunbar and his belief that he was now dealing with a rabble proved that he had greatly underestimated the Scottish forces. The small bridge at Stirling was only broad enough to allow two horsemen to cross abreast.
The Scots deployed in a commanding position dominating the soft, flat ground to the north of the river and waited as the English knights and infantry made their slow progress across the bridge. When the vanguard, comprising 5,400 English and Welsh infantry plus several hundred cavalry, had crossed the Bridge, the attack was ordered. The Scots spearmen came down from the high ground, quickly seizing control of the English bridgehead. De Warenne's vanguard was now cut off from the rest of the army. The heavy cavalry to the north of the river was trapped and cut to pieces (due, in part, to the strewing of caltrop's to de-seat the cavalry making them easy targets for the Scottish forces).
The Battle of Stirling Bridge was a shattering defeat for the English: it showed that under certain circumstances infantry could be superior to cavalry. It was to be some time, though, before this lesson was fully absorbed. Contemporary English chronicler Walter of Guisborough recorded the English losses in the battle as 100 cavalry and 5,000 infantry killed.