I find in the books of fiefs, that towards the beginning of the reign of the Emperor Conrad II the fiefs situated in his dominions did not descend to the grandchildren: they descended only to one of the last possessor's children, who had been chosen by the lord:
Libri Feudorum liburuetan ikusten dudanez, Konrado II.a enperadorearen erregealdiaren hasieran, feudoak, haren mendeko herrialdeetan, ez ziren bilobengana pasatzen;