A matsayinsa na farkon Sarkin Gabashin Faransa wanda ba Bafaranshe ba, Henry Fowler ya kafa daular Ottonia na sarakuna da sarakuna, kuma ana daukarsa a matsayin wanda ya kafa daular Jamus ta tsakiya, wacce aka sani har zuwa lokacin da Gabashin Faransa.An zabi Henry kuma ya nada sarauta a shekara ta 919. Henry ya gina wani katafaren tsarin kagara da manyan sojojin dawakai na tafi da gidanka a fadin Jamus don kawar da barazanar Magyar kuma a shekara ta 933 ya fatattake su a yakin Riade, wanda ya kawo karshen hare-haren Magyar na shekaru 21 masu zuwa kuma ya haifar da tashin hankali. fahimtar al'ummar Jamus.Henry ya faɗaɗa mulkin Jamus sosai a Turai tare da shan kashin da ya yi a kan Slavs a cikin 929 a Yaƙin Lenzen tare da kogin Elbe, ta hanyar tilasta wa Duke Wenceslaus I na Bohemia biyayya ta hanyar mamaye Duchy na Bohemia a wannan shekarar kuma ta cin nasarar Danish. Sarakuna a Schleswig a shekara ta 934. Sarakunan Rudolph na West Francia da Rudolph na Biyu na Upper Burgundy sun amince da matsayin Hegemonic na Henry a arewacin Alps, waɗanda dukansu suka yarda da wurin zama na ƙasa a matsayin abokan tarayya a 935.