Date Tanemune


Date Tanemune was a Japanese samurai warrior and clan leader during the Sengoku period.

Early life

He was born as the eldest son of Date Hisamune. His childhood name was Jiro.

Family

At the death of his father, he became daimyō of Mutsu Province.
In 1536, he promulgated the Date provincial code.
Tanemune's attempt to have Uesugi Sadazane, the childless head of the Uesugi, adopt Sanemoto and make him his heir, sparked a civil war within the Date known as the Tenbun War from 1542 to 1548 which resulted in Tanemune's replacement as clan head by his eldest son, Harumune.