Alt-Berlin located in the administrative territorial entity Mitte
Alt-Berlin ("Old Berlin"), also spelled Altberlin, is a neighborhood (Stadtviertel), situated in the Berliner locality (Ortsteil) of Mitte, part of the homonymous borough. In the 13th century it was the sister town of the old Cölln, located on the northern Spree Island in the Margraviate of Brandenburg. The neighbourhoods (Viertel) of Nikolaiviertel, Marienviertel, Klosterviertel are within Alt-Berlin.
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