States in Medieval Britain
The following counties are listed in the Domesday book, compiled under the order of William the Conqueror between 1066 and 1086,
Angle, Saxon, & Jute states
Southern Celtic states
Scottish, Pict & Caledonian states
Dane, Norsemen & Dubliner states
Here follow (mostly) states prior to 1066
on this there is some discussion in the Talk-section:
"What are the middle ages?"