Siegfried Samuel Marcus was a German inventor. Marcus was born of Jewish descent in Malchin, in the Grand Duchy of Mecklenburg-Schwerin. He made the first petrol-powered vehicle in 1864, while living in Vienna, Austria.

The Vienna Central Cemetery is one of the largest cemeteries in the world by number of interred, and is the most well-known cemetery among Vienna's nearly 50 cemeteries. The cemetery's name is descriptive of its significance as Vienna's biggest cemetery, not of its geographic location, as it is not in the city center of the Austrian capital, but on the southern outskirts, in the outer city district of Simmering.