

THE APPEARANCE OF WILLIAM WALLACE
As you may imagine many people in Scotland were extremely unhappy and the waves of revolt were rippling through the whole country. This is the first time we hear of William Wallace, as a matter of record in Scottish history, when he killed the English sherriff of Lanark William Heselrig. According to the tale writtin by Bling Harry, the killing of Heselrig was in revenge for the murder of Wallace's wife Marion, although there is no proof of this. More likely it was simply an attack against English rule, and William Wallace was soon to achieve some more minor victories at Loudoun Hill, Ayr, and also fighting alongside Sir William Douglas at Scone, defeating the English justice William Ormesby. 
However, William Wallace had another brother-in-arms and fellow rebel, a long forgotten Scottish hero and a man who was arguably much more successful than Wallace himself - the highlander Andrew Murray or Moray. A seperate rebellion was begun by the battle-hardened and experienced Andrew Murray and soon he successfully took Aberdeen, Glasgow, Perth, Scone, Dundee and in fact all the lands north of the Firth of Forth.
Castle by castle, stronghold by stronghold, Andrew Murray and his army of Highlanders essentially kicked the English out of the whole of the northern half of Scotland. This must have greatly impressed William Wallace and they agreed to combine their forces and prepare for battle against the English at Stirling.
The English cavalry began to cross the bridge and the Scottish army, led by Wallace and Murray, waited until about half of them had crossed the bridge. The Scottish army then thrust forward with huge vigour, killing many of the cavalry that had already crossed and causing a "horse traffic jam" on the bridge, with some cavalry stopping and others still trying to get onto the bridge from the English side. The sheer amount of horsemen on the bridge caused it to collapse and a large number of English cavalrymen drowned in the river below. 