Edward I besieged and sacked the town of Berwick in 1296 after pretending to retreat from the city and flying counterfeit Scottish banners to trick the residents into letting his army inside the walls. Once within the city, the English army slaughtered an estimated 7,500 residents over two days, showing no mercy to men, women, or children in what became known as the Sack of Berwick. The brutal attack left the Scottish people in Berwick helpless and had a significant impact on their population.