Ōkubo Tadayo

In this Japanese name, the surname is Ōkubo.

Ōkubo Tadayo
大久保おおくぼ 忠世ただよ
Lord of Odawara
In office 1590–1594
Succeeded by	Ōkubo Tadachika
Personal details
Born	1532 Okazaki, Aichi
Died	October 28, 1594 Odawara, Kanagawa
Nickname	"Shinjuro"
Military service
Allegiance	Okubo clan Tokugawa clan
Commands	Futamata Castle, Komoro Castle Odawara Castle
Battles/wars	Battle of Azukizaka (1564) Battle of Mikatagahara (1573) Battle of Nagashino (1575) Battle of Komaki-Nagakute (1584) Siege of Odawara (1590)

Ōkubo Tadayo (大久保おおくぼ 忠世ただよ, 1532 – October 28, 1594) was a samurai general in the service of Tokugawa Ieyasu in the Azuchi–Momoyama period, subsequently becoming a Daimyō of Odawara Domain in early Edo period, Japan.

Biography

Ōkubo Tadayo was the eldest son of Ōkubo Tadakazu, a hereditary retainer of the Tokugawa clan. He was born in what is now part of the city of Okazaki in Mikawa Province. Tadayo's nickname was Shinjuro (新しん十郎じゅうろう). He rose to become considered one of Ieyasu's sixteen generals and was entrusted with Futamata Castle in Tōtōmi Province. Tadayo contributed in the Battle of Azukizaka (1564) against the Ikkō sect in Mikawa province.

At the Battle of Mikatagahara on 1573, Ōkubo Tadayo along with Amano Yasukage led a small band of Tokugawa foot soldiers and matchlock gunners in attacking the Takeda camp, throwing the vanguard of the Takeda army into confusion.

In 1574, Ōga Yashirō, a minor official of Tokugawa clan, colluded with the Takeda clan to overthrow Tokugawa Ieyasu. On the order of the Okazaki magistrate, Ōoka Tadasuke, Tadayo immediately caught Yashirō and paraded him around Hamamatsu Castle, before Tadayo execute Yashirō brutally by mutilating him alive with a saw, while Tadayo crucified the wife and children of Yashirō.

Tadayo accompanied Tokugawa Ieyasu in all of his campaigns, including in the Battle of Nagashino (1575).

Upon the assassination of Oda Nobunaga in 1582, Ieyasu expanded his rule into Shinano Province, with Ōkubo Tadayo assigned to managing the campaign from his base at Komoro Castle.

After the Battle of Odawara (1590), Ieyasu was transferred from the Tōkai region to the provinces of the Kantō region. Toyotomi Hideyoshi ordered that Ōkubo Tadayo be raised at that point to the status of daimyō, and was assigned the fief of Odawara, with an income of 45,000 koku. He continued to rule in Odawara until his death in 1594, and was succeeded by his son, Ōkubo Tadachika.

References

• Turnbull, Stephen (1998). 'The Samurai Sourcebook'. London: Cassell & Co.

Further reading

• Mitsugi Kuniteru 三津木みつぎ國こく輝てる (1980). Odawara jōshu Ōkubo Tadayo - Tadachika 小田原おだわら城主じょうしゅ大久保おおくぼ忠世ただよ・忠隣ただちか. Tokyo: Meichoshuppan 名著めいちょ出版しゅっぱん. (OCLC 62397087)