1100
- 1137 Newminster Abbey is founded near Morpeth.
- 1139 Matilda grants Northumberland north of the Tees to David I of Scotland.
- 1143 Castle is built at Northallerton.
- 1157 Henry II reclaims Northumberland from Scotland.
- 1160 Castle is built at Norham.
- 1174 While besieging Alnwick, William I of Scotland is captured and imprisoned in Newcastle.
Read more about this topic: Timeline Of Northumbria And Northumberland