The Lost Kingdom of Rheinwg

Question

https://www.thearchaeologist.org/blog/the-mysterious-story-of-a-missing-medieval-kingdom

Answer 1

Answer 2

I think they must have had more kings in Wales than commoners!

Answer 3

I have never heard if that kingdom.

Comments

There were so many small kingdoms in old Europe that I don't think anyone knows them all from memory.

And Rheinwg sounds as if it should have been in Germany.