The battle began at about 9 am on 14 October and lasted all day, but while a broad outline is known, the exact events are obscured by contradictory accounts in the sources. Although the numbers on each side were about equal, William had both cavalry and infantry, including many archers, while Harold had only foot soldiers and few, if any, archers. The English soldiers formed up as a shield wall along the ridge and were at first so effective that William's army was thrown back with heavy casualties. Some of William's Breton troops panicked and fled, and some of the English troops appear to have pursued the fleeing Bretons until they themselves were attacked and destroyed by Norman cavalry. During the Bretons' flight, rumours swept through the Norman forces that the duke had been killed, but William succeeded in rallying his troops. Two further Norman retreats were feigned, to once again draw the English into pursuit and expose them to repeated attacks by the Norman cavalry. The available sources are more confused about events in the afternoon, but it appears that the decisive event was Harold's death, about which differing stories are told. William of Jumièges claimed that Harold was killed by the duke. The Bayeux Tapestry has been claimed to show Harold's death by an arrow to the eye, but that may be a later reworking of the tapestry to conform to 12th-century stories in which Harold was slain by an arrow wound to the head.