North-East England is one of the nine official regions of England and comprises the
combined area of Northumberland, County Durham, Tyne and Wear and Tees Valley. The historic
name for North-East England is Northumbria. In Anglo-Saxon times it covered the area from the
river Humber in the south to the river Forth in the north. It
shrank to the current size when the Earldom of Northumbria was eventually recognised as part
of England by the Anglo-Scottish Treaty of York in 1237. It now stretches from the River Tees
in the south to the River Tweed in the north.
It is the home of one of the most important Roman
monuments in Great Britain, Hadrian's Wall. This wall also continues into Cumbria to the west,
but the most significant stone battlements of the wall are in North East England, since the
availability of stone was much greater.
This area also contains a large number of castles built to
protect the residents from the fighting between the English and Scots which continued from
Roman times to the 17th century.