Kōichi Kido, Japanese politician, 13th Lord Keeper of the Privy Seal of Japan (d. 1977)
Marquis Kōichi Kido (木戸 幸一, Kido Kōichi) (July 18, 1889 – April 6, 1977) served as Lord Keeper of the Privy Seal of Japan from 1940 to 1945, and was the closest advisor to Emperor Hirohito throughout World War II. He was convicted of war crimes and sentenced to life imprisonment, of which he served 6 years before being released in 1953.