 Nyorai kuenderera mberi kweiyi ndima - Frederick aive mwanakomana mudiki waDuke Leopold III 13511386 nemukadzi wake Viridis d. 1414, mwanasikana waBernabò Visconti, Ishe weMilan. Maererano ne1379 Chibvumirano cheNeuberg, baba vake vakatonga nzvimbo dzeHabsburg Inner Austrian dzeStyria, Carinthia, Carniola, pamwe neTirol uye nhaka yepakutanga yeAustria yeAustria muSwabia. Pashure porufu rwokutanga rwaDuke Leopold muhondo ya1386 yeSempach, Frederick nevakoma vake vakuru William, Leopold IV naErnest pakutanga vakaramba vari pasi pekudzidziswa nasekuru vavo Duke Albert III weAustria. 