Whakaotihia te rerenga e whai ake nei: Ko William te tama a Albert I o Bavaria me Margaret o Brieg. William, piri ki te Hooks, i roto i
i whawhai ki tōna pāpā tae noa ki te tau 1394. I te tau 1404 i whai mana ia ki a ia hei kaute o Holland, Hainaut me Zeeland me te rangatira o Bavaria-Straubing.