Hamburg-Mitte is one of the seven boroughs of Hamburg, Germany, covering most of the city's urban center. The quarters of Hamburg-Altstadt and Neustadt cover much of the city's historic core. In 2016 the population was 301,550.
Wikipedia https://en.wikipedia.org/wiki/Hamburg-Mitte
Coordinates 53°48'21.589" N 8°57'41.787" E