Between Albrecht IV and his brother Rudolph III, the Habsburg properties were split, with Albrecht keeping the Aargau and the western parts, the eastern parts going to Rudolph III.
Antara Albrecht IV dan saudaranya Rudolph III, properti-properti Habsburg dipisahkan, dengan Albrecht menyimpan Aargau dan bagian-bagian barat, bagian-bagian timur jatuh ke tangan Rudolph III.