Trouble in Northumbria
The Normans struggled to control Northumbria.
Several Norman earls were attacked or killed.
Local people resisted Norman authority.
Danish Support
In 1069, a Danish fleet arrived to support the rebels.
This was a serious danger for William because:
- Denmark had strong Viking connections with England
- The Danes could support Edgar Aetheling
- William feared a larger invasion
The rebels captured the city of York.
Norman control in the north almost collapsed.