The administration of Tanuma was marked by corruption and by inflation of currency.
In 1784 (Tenmei 4), Okitsugu's son was assassinated in front of his father inside Edo Castle. The involvement of senior figures in the bakufu was suspected, but only the assassin was punished. The result was that liberal reforms and the relaxation of the national isolation policy sakoku were stopped.
- Screech, Timon. (2006). Secret Memoirs of the Shoguns: Isaac Titsingh and Japan, 1779–1822, p. 222 n65.
- Screech, pp. 148-151, 163-170, 248.
| Lord of Sagara
- Hall, John Whitney. (1955). Tanuma Okitsugu, 1719–1788: Forerunner of Modern Japan. Cambridge: Harvard University Press. OCLC 445621