<prompt> Pedzisa mutsara unotevera: William akanga ari mwanakomana wedangwe womuBrunswick Duke Henry the Mild kubva kumuchato wake wokutanga naSophia, mwanasikana weGriffin Duke Wartislaw IV wePomerania. Pakafa baba vake muna 1416, akagara nhaka yeBrunswick Principality yeLüneburg iyo yaakatonga pamwe chete nemunununa wake wehafu-mukoma Henry Runyararo. William akazova mutongi ane simba; akakurumidza kupinda mumakakatanwa mazhinji nemachinda akavakidzana akadai saMubhishopi Mukuru weBremen uye Bhishopi weHildesheim, uye akatsigira maCounts eSchauenburg neHolstein mukurwisana kwavo naMambo Eric weDenmark. Akarwisanawo naMarkgrave Frederick weMeissen vachikunda  <response>: Mauto evaHussite muna 1421 muhondo yeBrux. 