Harald had demanded that the people of York were to hand over their gold, food and livestock. This was to happen on the 25 of September at Stamford Bridge (13 km away from York)
When Harald and his brother, Tostig, arrived to collect everything, they were shocked when they saw that Harold's army had arrived a few days earlier.
What was even more devastating for them was that they had only brought swords with them. Harold had offered a pardon and some land in exchange for switching sides, but Tostig declined. Harold went back to his army, then the Battle of Stamford Bridge began.
Unfortunately for the Norwegians, Tostig was slaughtered and Harald was killed by an arrow to his neck. Harold was victorious this time, and no longer had to worry about Hadrada fighting for the spot of the king.
It was said that Harold and his men celebrated their victory by feasting and drinking all night. The next morning they discussed what they were going to do next. They had no idea whether Williams ship had landed in England.
William and his army landed in Pevensey on September 28. They built a castle there and completely raided the area. Harold and his crew didn't arrive there until the 6th of October, where he immediately started attacking.