Brandenburg

Brandenburg is in the the North-East corner of Germany, and it surrounds but does not include Berlin which is a state in itself.  It has a population of about 2,511,525.  I would compare the size of the State to Maine in the U.S.  The Eastern 3rd of the state was ceded to Poland in 1945 after WWII.  Historically, Brandenburg has been part of the Holy Roman Empire, later became a duchy, then a Kingdom, and under the Third Reich was known as "The Free State of Prussia."