England–Wales border - Wikipedia
Writing The Welsh Borderlands In Anglo-saxon England - (artes
PDF) Northumbria's southern frontier: a review: Northumbria's
The People of the Borderlands: A History of the People of the
Pleistocene glacial limits in England, Scotland and Wales
Anglo-Saxon England and the European Union
Chapter 1 Introduction in: Landscape, Tradition and Power in
The Kingdom of Northumbria - England's North East