Role-playing games often use a common set of creatures that are easily recognizeable and have pre-determined traits. Most are based on mythology in some form or other. The Dungeons & Dragons Monster Manual contains many of these as well.
... Von Magdeburg nach Königsberg (1873), which deals with his life up to the time of his settlement at Königsberg.
See Quabicker, Karl Rosenkranz (1899), and J ...