Background
Tadao Shizuki was born in 1760 nto the Nakano family of Nagasaki in the province of Hizen but was at an early age adopted into the Shizuki family. The members of the Shizuki family had for generations acted as interpreters for the foreigners trading at Nagasaki, the only family in the domain permitted to do so.
He was also called Tadajiro or Ryuho.