People Switzerland Guglielmo L. Brentel peoplepill id: guglielmo-l-brentelGLB 15 views today 15 views this weekSwiss hotel managerGuglielmo L. BrentelBiographyListsAlso ViewedSimilar peoplePeople also viewedUrs SchwarzenbachSwiss businessmanJakob TannerSwiss historian of modern ageFred HürstSwiss hotel managerFrom our partnersSponsoredGuglielmo L. Brentel