People Germany Karl-Friedrich Merten peoplepill id: karl-friedrich-mertenKM 3 views today 3 views this weekGerman World War II U-boat commanderKarl-Friedrich MertenBiographyBibliography (1)ListsAlso ViewedThe worksBooksSources:Openlibrary1994Nach KompassAuthors:Karl-Friedrich MertenFrom our partnersSponsoredKarl-Friedrich Merten