It is often considered that the original manuscript of Azuma Kagami in the Kanazawa Library was passed to the Gohojo clan in Odawara, and then to Ieyasu TOKUGAWA, but it is now thought that Azuma Kagami was quickly scattered and lost and was an incomplete work in the Muromachi period, so most of them were probably passed down in the form of abridged or incomplete books consisting of volumes of several years worth of volumes.
吾妻鏡は金沢文庫にあった原本が、小田原の後北条氏の手に渡り、それが徳川家康の手に渡ったと思われやすいが、現在の研究では、吾妻鏡は早くに散逸し、室町時代には既に揃いの完本の形では伝えられておらず、断片的な抄出本や、数年分の零本の形で伝わるものがほとんどであったのかもしれない。