was a Japanese samurai warrior and Date clan leader during the Sengoku period. Biography He was born as the eldest son of Date Hisamune. His childhood name was Jiro (次郎). At the death of his father, he became daimyō of Mutsu Province. In 1536, he promulgated the Date provincial code (Jinkaishū). 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 from 1542 to 1548 which resulted in Tanemune's replacement as clan head by his eldest son, Harumune. Family Father: Date Hisamune (1453–1514) Mother: Sensu'in (d. 1513) Wife: Teishin'in Concubines: Nakajo-dono Shimodate-dono Nakadate-dono Watari-dono Bo-dono Children: daughter married Souma Akitane by Teishin'in daughter by Teishin'in daughter married Ashina Moriuji Date Harumune by Teishin'in Date Genbanmaru by Teishin'in Osaki Yoshinobu (1526–1550) by Teishin'in Date Sanemoto (1527–1587) by Nakajo-dono daughter married Nikaido Teruyuki by Shimodate-dono daughter married Tamura Takaaki by Shimodate-dono Date Munetoshi by Shimodate-dono Daughter married Kakketa Toshimune by Shimodate-dono Yanagawa Munekiyo (1532–1605) by Nakadate-dono Ogata Yasuaji by Nakadate-dono Watari Motomune (1530–1594) by Watari-dono Watari Tsunamune by Watari-dono Kori Munesada by Bo-dono Kasai Ushisarumaru by Bo-dono Gorakuin Munesake by Bo-dono Date Shichiro by Bo-dono Kosugo gozen married Sōma Yoshitane (1558-1635) by Bo-dono Retainers Notes References Fukushima Prefecture (1969), Fukushima Kenshi, Vol. 1. Fukushima Prefectural Government. Miyagi Prefecture (1957), Miyagi Kenshi, Vol. 1. Miyagi Kenshi Kankōkai. Daimyo 1488 births 1565 deaths Date clan