Takahashi Shigetane also known as Takahashi Shōun was a senior retainer of the clan of Ōtomo throughout the latter Sengoku period of Feudal Japan. As Shigetane was additionally known by the name of Takahashi Shoun during the earlier years of his life, he began his service beneath the Ōtomo of Bungo Province around this same initial time, with Sōrin as their leader and head. Eventually, Shigetane became the respective controller of the Takahashi clan, in which he was additionally regarded as a great pillar of power to the Otomo name, being granted a castle by the name of Iwaya that bordered Chikuzen Province in contribution to his authority and prestige. The powerful Shimazu had conquered the Ryūzōji at Okitanawate in 1584, and by 1586 had set their aim upon the destruction of the Ōtomo, with whom they had a long, intense rivalry. This action forced Shigetane, who was unprepared, to strengthen his defenses. However, the forces of Shimazu arrived earlier than the Ōtomo initially anticipated, and therefore Shigetane was desperately placed in a dilemma: on one hand he had no more than 763 men, and as the opposition respectively wielded around 50,000 soldiers, no form of defense could be utterly possible, considering that such a mass of military might was additionally set on solely besieging Iwaya castle, as opposed to splitting and assaulting from a different direction. And as the circumstances would naturally have it, Shigetane was overwhelmed relatively immediately, but the forces in Iwaya somehow managed to survive for over two weeks before initially seeing that the situation was far beyond any length of salvation, forcing Shigetane to commit suicidethere and then, who was consequently praised by the Shimazu for his bravery and conviction, despite being in a situation that entirely contradicted any means of victory. During the siege of Iwaya Castle, a commanding officer of the Shimazu stopped his attack and said, "Why do you serve the unjust Ōtomo clan that makes light of Buddhism and has faith in Christianity? Your bravery has already been proven, please surrender." To which he answered: "Swearing allegiance and loyalty to your lord and his clan when he is powerful, and betraying the clan when it is weak. Many a man do that, but I owe a debt of gratitude to my lord and his clan, and therefore I cannot do such a thing. A samurai who is ungrateful is worse than animals." It was said that all men in the battlefield, including Shimazu's soldiers admired him. His son Muneshige later was adopted to the Tachibana and succeeded Shigetane's daughter-in-law Tachibana Ginchiyo as the head of the clan.
