I'd say moderately. They're not completely unknown, but they're not well-known either, you know?  Still,  I'd only expect the kind of people that pay attention to international wizarding news would be able to recognize him or his family.<br/><br/>Edit: idea, kc! Just came up with something for you to ponder over, and do what you will with. The family the Raubriter's are feuding with (a blood feud that goes back about four generations) are the Malefique's.  It started over one of Gustav's ancestors (Erik Raubriter) killing someone in the Malefique's family during a duel.