People Switzerland Guglielmo L. Brentel peoplepill id: guglielmo-l-brentelGLB 19 views today 19 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