Domen
Misico dux Vandalorum
I could include CZ in my concept of "Central Europe". Not Poland though. Still too close to Russia.
But you count distance to Kaliningrad Oblast or Russia proper?:

Did I ever say Northern Europe isn't a thing, or that the United Kingdom isn't part of it?
Tell me three things:
- When was the term "Northern Europe" used for the first time (what is the first recorded use)?
- When was the term "Eastern Europe" used for the first time (what is the first recorded use)?
- When was the term "Central Europe" used for the first time (what is the first recorded use)?
The term "Central Europe" was surely in use already in 1915 (contrary to what you have just claimed that it was invented after 1989):
http://en.wikipedia.org/wiki/Mitteleuropa#Mitteleuropa_Plan
Perhaps it was used even earlier - but I have not researched this.
Can you show me any recorded in sources use of term "Eastern Europe" or "Northern Europe" prior to year 1915?