People Germany Friedrich Konstantin Wenzeslaus Freiherr O'Byrn peoplepill id: friedrich-konstantin-wenzeslaus-freiherr-obyrnFKWFO 9 views today 9 views this weekFriedrich Konstantin Wenzeslaus Freiherr O'ByrnBiographyListsAlso ViewedSimilar peoplePeople also viewedAlfred Duerckheim-MontmartinKarl Friedrich von VeltheimBrunswick Chamber Councillor, Member of the Brunswick ParliamentFrom our partnersSponsoredFriedrich Konstantin Wenzeslaus Freiherr O'Byrn