Well to explain there is a country that may or may not have existed, a colony of Anglo-Saxons exiles led by a man name Siward (Anglo-Saxon form of Sigurd) on supposed land that was granted to them for service by Alexios Komnenos. And Siward Barn is an Anglo-Saxon nobleman thought by some to be that Siward. It is sketchy where it was but it was probably in Crimea or Krasnodar Krai. There are some interesting articles on it that I can link.