was a Japanese daimyo

Daimyo

is a generic term referring to the powerful territorial lords in pre-modern Japan who ruled most of the country from their vast, hereditary land holdings...

 of the Edo period

Edo period

The , or , is a division of Japanese history which was ruled by the shoguns of the Tokugawa family, running from 1603 to 1868. The political entity of this period was the Tokugawa shogunate....

, who ruled the Karatsu Domain

Karatsu Domain

' was a Japanese domain of the Edo period, located in Hizen Province, in Kyūshū. Its seat of government was in Karatsu Castle, in modern-day Karatsu, Saga.-History:...

. He was the eldest son of the previous lord, Mizuno Tadakane; after Tadakane's retirement in 1805, he received headship and the title of daimyo. Tadaaki dismissed Nihonmatsu Yoshikado; the karō

KARO

KARO is a radio station licensed to serve Nyssa, Oregon, USA. The station is owned by the Educational Media Foundation.It broadcasts a Contemporary Christian music format as part of the Air 1 network.-History:...

whom his father had relied on. Instead, he conducted direct government, and tried to institute reforms. However, his reforms were largely unsuccessful, and so he yielded headship to his son, the reformer Mizuno Tadakuni

Mizuno Tadakuni

was a daimyō during late-Edo period Japan, who later served as chief senior councilor in service to the Tokugawa Shogunate. He is remembered for having instituted the Tenpo Reform.-Biography:...

, and retired.