State officials and survivors are set to gather at the former German concentration camp Auschwitz on Friday to commemorate Sinti and Roma who perished at the hands of the Nazis 80 years ago. The main speech at the memorial service is to be given by German Bundestag President Bärbel Bas. The lawmaker from the centre-left Social Democrats (SPD) is the first leading representative of the German parliament to travel to Auschwitz, according to the Bundestag. The president of the Polish Senate, Małgorzata Kidawa-Błońska, is also expected to attend. The day is timed to commemorate a massacre on the n…