Potsdam initiated entry ban proceedings against high-profile Austrian white supremacist Martin Sellner, after he attended a far-right meeting in the city late last year. “On Friday, the state capital of Potsdam began legal proceedings to revoke the freedom of movement of the Austrian citizen Martin Sellner,” a city spokesman said on Sunday. The exclusion of Sellner, the founder of the far-right Identitarian movement in Austria, was announced by Potsdam Mayor Mike Schubert at a rally on Saturday, the city press office said. Germany has seen weeks of rallies against the far right drawing hundred…