William made preparations for the great fleet to be collected on the Channel coast at Dives-sur-Mer by the middle of June 1066. 14,000 men were summoned for the onslaught. Harold, knowing of the naval threat, stationed his fleet at the Isle of Wight and posted land forces along the Channel coast. Yet the French army was kept in port by contrary winds. On eventually taking sail for England it was blown off course and was obliged to take shelter in the port of Saint Valéry-sur-Somme. There it remained until the last week of September. Never has an invasion been so bedevilled by bad luck, and it must have seemed to William’s commanders that divine help would not necessarily be forthcoming.
Meanwhile, Harold waited. For four months he kept his forces prepared for imminent attack. Then on 8 September, he disbanded them. Provisions were running out, and the men needed urgently to return to their farms. He may have been informed of the abortive sailing of William’s fleet and calculated that, with the season of storms approaching, there would be no invasion this year. Soon after his return to London, he learned of a more immediate danger. As the Anglo-Saxon Chronicle puts it, ‘Harald, king of Norway, came by surprise north into the Tyne.’ On 20 September, Harald Hardrada descended upon York. On hearing this unwelcome news Harold mustered his retainers; he marched north very swiftly, riding night and day, picking up local forces as he went forward. The first that the Danish army knew of his arrival was the sight of the dust thrown up by the horses. On 25 September he engaged the enemy at Stamford Bridge where he obtained a complete victory. It was a measure of his competence as a military commander. Harald Hardrada was killed in the course of the battle, marking the end of the Viking interest in England. ‘A great man,’ Harold said of Hardrada, ‘and of stately appearance. But I think his luck has left him.’
Harold’s own luck was soon dissipated. He was, in effect, the last of the English kings. As soon as he had celebrated the victory over the Norwegians, he received news that William had launched his invasion force. The duke had put a lantern on the mast of his ship, leading the way across the Channel. The Norman force landed in Pevensey Bay at nine o’clock in the morning on Thursday, 28 September 1066. It was the most fateful arrival in England’s history. From Pevensey Bay the Normans rowed around the coast to Hastings, which they considered to be more favourable terrain. William built a makeshift castle here, and proceeded to ransack the adjacent villages. But he did not march along the road to London; his position was essentially defensive, close to his ships.
Harold received word of William’s invasion two or three days after the event and immediately marched southward with the core of his army to meet the enemy in Sussex. He acted very promptly, but his troops had just fought an arduous battle in the course of which their numbers had been reduced. Haste may have precipitated defeat. He was hoping, perhaps, to catch the Normans by surprise just as he had surprised Harald Hardrada; he was undoubtedly trying to confine them on the little peninsula of which Hastings was a part. He knew the territory well; Sussex was his native country, and he possessed large estates there. By 13 October he had attained this objective. He had told the local Sussex militia to meet him at ‘the hoary apple-tree’ on Caldbec Hill, but William received word of the forthcoming assault. He was able to lead his forces against an English army that was not properly assembled.
The Norman troops were marched in sight of the English force waiting on Caldbec Hill, the highest ground available; the Normans took up battle order on the southern slope of the hill, in what was theoretically an inferior position. The location of the English, on the summit, was later marked by the high altar of Battle Abbey; they were pressed tightly together, whereas the Normans were in more military formation. The English had some 6,000 or 7,000 men, but they were outnumbered by the Normans. The English were on foot, according to their normal practice, whereas the Normans had a large force of cavalry waiting in the rear.