 Nyorai mberi kweiyi ndima - Baba nemwanakomana pakupedzisira vakayananiswa kuti vabatsire chinangwa chamambo chokuwana Duchy yakavakidzana yeAustria, uko mutongi wokupedzisira weBabenberg, Frederick II akanga aurayiwa muhondo ya1246 yeRwizi rweLeitha. Mambo Wenceslaus pakutanga akanga aedza kuwana Austria nokuroora mugari wenhaka yake, Vladislaus, kumuzukuru womuduku wokupedzisira Gertrude weBabenberg. Roorano iyoyo yakaguma pashure pehafu yegore norufu rwaVladislaus muna January 1247, uye muna 1248 Gertrude akaroora Zähringen margrave Herman VI weBaden. Herman, akarambwa navanokudzwa veAustria, haana kukwanisa kutanga kutonga kwake. Wenceslaus akashandisa izvi sechikonzero chokupinda muAustria apo Herman akafa muna 1250 maererano nemamwe manyuko, nyika dzakamudana kuti adzorere runyararo. 