Date Terumune

was a Japanese samurai clan leader of the Sengoku period. He had close relationship with Oda Nobunaga, one of the leading figures of the period. Terumune was the father of Date Masamune, who succeeded him as clan leader in 1584.

Biography Terumune's childhood name was Hikotaro (彦太郎) later Sojiro (総次郎). He was born a warrior since his family is often in conflict with its neighbors.

In 1568, Terumune attacked Nihonmatsu Castle against Nihonmatsu Yoshitsugu, outnumbered and defeated, Yoshitsugu pretended to surrender.

Terumune fought against the Mogami Yoshiaki twice in different years, 1574 and 1578, in both battles, his wife, who also Yoshiaki sister, Yoshihime, advanced to the middle of the battlefield to create a peace treaty.

Later in 1578, Terumune succeeded his father Harumune; and he became the sixteenth head of the Date clan of Mutsu Province.

Records show that Nobunaga cultivated a close relationship with Terumune. The daimyo often confided in him affairs of the state through letters. During his campaigns unifying Japan, he sent Terumune a letter boasting how he annihilated tens of thousands in Echizen and Kaga.

When Oda Nobunaga was assassinated in 1582, Terumune gave his clan's support to Toyotomi Hideyoshi in the power struggle which followed.

An account cited him as party to the negotiation with a local rival called Hatakeyama Yoshitsugu. At this time, his son Date Masamune appear to be leading the clan. In 1585, Yoshitsugu was invited to a feast after an alliance was forged. A day after, when Masamune took the guest hunting, the latter's men abducted the undefended Terumune.