Angle, Saxon and Jute states

See: Heptarchy

• East Anglia
  • Norfolk
  • Suffolk
• Hwicce
• Essex
• Kent
• Lindsey
• Magonsaetan
• Mercia
• Northumbria
  • Bernicia
  • Deira
• Sussex
• Wessex

Southern Celtic states

• Afan
• Arfon
• Arllechwedd
• Brycheiniog (Brecknockshire)
• Buellt (Builth)
• Calchvynydd
• Camelot = fictional
• Cateuchlanium
• Cornwall
• Deheubarth
• Demetae
• Devon
• Dumnonia
• Dunoding
• Dyfed
• Dyffryn Clwyd
• Elfael
• Ergyng
• Glyn Rhondda
• Glywysing
• Gwerthrynion
• Gwynedd
• Gwynlliauc
• Gwynllwg
• Gwyr
• Gwent
• Llyn
• Manaw Gododdin
• Meirionydd (Merionethshire)
• Meisgyn (Miskin)
• Melenydd
• Mon
• Morgannwg (Glamorganshire)
• Pennines
• Penychen
• Powys
• Rheged
• Seisyllwg (Cardiganshire/Ceredigion)
• Senghenydd
• Tegeingl
• Ystrad Tywi

Northern Celtic; Scottish, Pict and Caledonian states

• Alban
• Argyll
• Caithness
• Cumbria
• Dalriada
• Dumbarton
• Fortriu
• Galloway
• Gododdin
• Lothian
• Mar
• Moray
• Rheged
• Scotland
• Strathclyde

Dane, Norsemen and Dubliner states

• Cumbria
• Danelaw
• Gaell-Gaedhill (Galloway)
• Kingdom of Man
• Earldom of Orkney
• Yorkshire