Playing as Lithuania (M/M).
Don't know if this was intentional or a small bug but the changing the capital city to another town costed 2.000. Changing it back (test) costed another 2.000.
Changing a small castle to a town costs a fortune (6.000).
The pagan priests for Lithuania have a reference to being a bishop.
Its very difficult to get an alliance. Ending a war by diplomacy has never been considered by the AI till now (over 70 turns in game). They just want me to become their vasals.
AI cities go rebel a lot.
I had the Hanse Headquarters without having to upgrade the guild several times.