This is the 5745th most frequent German word.
brandenburgs
"Brandenburgs" does not directly translate to anything in English, but it could refer to something related to "Brandenburg" — a federal state in Germany. Context would clarify its meaning.
Possessive usage to denote the capital city belonging to Brandenburg.
Brandenburgs Hauptstadt ist Potsdam.
Brandenburg's capital city is Potsdam.
Possessive usage to relate the history associated with Brandenburg.
Die Geschichte Brandenburgs ist reich an Kultur.
The history of Brandenburg is rich in culture.
Possessive usage indicating the association of lakes with the region Brandenburg.