THE PRINCIPAL TERRITORIES OF BRITAIN before the Saxon Invasion

• 1. Gwent; — from the river Usk to Gloucester bridge.
• 2. Morganwg ; — from the river Usk to Ystrad Tawy.
• 3. Rheged; — from Ystrad Tawy to Ystrad Tywy.
• 4. Dyved ; — from Ystrad Tywy to Glyn Teivi.
• 5. Ceredigion; — from Ystrad Teivi to the sea, and onwards, including Dyvi and Cantrev Ordovices. ;
• 6. Gwynedd; — from Cantrev Orddwyv to Menai, including also, Aerven and Teyrnllwg (Vale Royal of Chester).
• 7. Teyrnllwg ; — from Aerven to Argoed Derwennydd (Derwent wood).
• 8. Deiri and Bernicia ; — from Argoed Derwennydd to the river Trent.
• 9. Argoed Calclivynydd ; — between the river Trent and the river Thames that is, the river of London.
• 10. Fferyllwg; — between the rivers Wye and Severn.
• 11. Powis; — between Aerven, the extremity of Teyrnllwg, the borders of Fferyllwg, and Oantrev Orddwyv.
• 12. Brycheiniog ; — from the sources of the Wye to the source of the Usk, and thence on to the extremities of Fferyllwg.
• 13. Caint ; — from the river Thames and Môr Tawch (German Ocean) to the confines of Arllechwedd Galedin.
• 14. Arllechwedd Galedin ; — from the last territory to the extremities of Dyvnaint (Devon), Gwlad (Somersetshire) yr Hav, and Argoed Calchvynydd.
• 15. Dyvnaint and Cerniw (Devon & Conwall) ; — from Arllechwedd Galedin and the intermediate seas, to the British Channel.
• 16. Gwlad yr Hav; — from the river Goreivion 6 along the extre- mity of the territory of Calchvynydd, the river 7 Fferyllwg and Gwent, to Môr Essyllwg, called the Severn Sea, and the confines of Dyvnaint and Cerniw.