The first siege of Takatenjin occurred in 1574, when it was attacked by the forces of Takeda Katsuyori

Takeda Katsuyori

was a Japanese daimyo of the Sengoku Period, who was famed as the head of the Takeda clan and the successor to the legendary warlord Takeda Shingen. He was the son of Shingen by the , the daughter of Suwa Yorishige...

. The garrison was commanded by Ogasawara Nagatada

Ogasawara Nagatada

' , also known as , was a Japanese samurai of the Sengoku period, who served the Imagawa, Tokugawa, and Takeda clans. Nagatada, the son of Ogasawara Ujioki, first served the Imagawa clan together with his father. However, after the death of Imagawa Yoshimoto, he became a Tokugawa retainer, and...

, who held the fortress for Tokugawa Ieyasu

Tokugawa Ieyasu

 was the founder and first shogun of the Tokugawa shogunate of Japan , which ruled from the Battle of Sekigahara  in 1600 until the Meiji Restoration in 1868. Ieyasu seized power in 1600, received appointment as shogun in 1603, abdicated from office in 1605, but...

. Nagatada surrendered to the Takeda clan, and became a Takeda retainer, receiving the Omosu District of Suruga Province

Suruga Province

was an old province in the area that is today the central part of Shizuoka prefecture. It was sometimes called . Suruga bordered on Izu, Kai, Sagami, Shinano, and Tōtōmi provinces; and had access to the Pacific Ocean through Suruga Bay.-History:...

 as a fief, where he would relatively remain neutral within up until the Invasion of Kai Province

Kai Province

, also known as , is an old province in Japan in the area of Yamanashi Prefecture. It lies in central Honshū, west of Tokyo, in a landlocked mountainous region that includes Mount Fuji along its border with Shizuoka Prefecture....

during 1582.