King Harold's army took up a position on an east-west ridge north of Hastings. The ridge itself was called Senlac Hill. They found the Norman army marching up the valley in front of them. While Harold had more soldiers, they were tired from the from London. William formed his lines at the base of the hill facing the shield wall of the English. He sent his archers halfway up the slope to attack the English. He sent his mounted knights to the left and right to find any weak spots. At first William's knights tried to break through the shield wall with the weight of their horses. But they were attacking uphill and could not gain any speed. Harold's front line simply stood fast and was able to fend off any attacks. William's army began to fall back with rumors of Duke William's death. William removed his helmet so his men could see he was still alive. When William saw that many of Harold's men were following his knights back down the hill, he used a trick he had learned years before. He turned suddenly and charged the oncoming English foot soldiers, who had no chance against mounted knights.