Regarding the deposition of Imperial Prince Osabe, "FUJIWARA No Momokawa den (the biography of FUJIWARA no Momokawa)" in "Kugyobunin (directory of the successive Imperial officials)" says that the Minister (Momokawa) always thought of Emperor Kanmu.
（他戸の廃太子について『公卿輔任』藤原百川傳云く「大臣（百川）素屬心於桓武天皇。