The Hanseatisches Oberlandesgericht (Hanseatic Higher Regional Court, abbreviated HansOLG, officially without a suffix "Hamburg") is the Higher Regional Court (OLG) of the Free and Hanseatic City of Hamburg, Germany, and thus part of the Hamburg ordinary jurisdiction. It is located at the square of Sievekingplatz in the St. Pauli quarter. The square is named after the first president of the OLG, Ernst Friedrich Sieveking. From Wikipedia