Date of Birth: 
Place of Birth: Okazaki, Aichi Prefecture, Japan
About Ōkubo Tadayo
- Okubo Tadayo (??? ??, 1532 – October 28, 1594) was a samurai general in the service of Tokugawa Ieyasu in the Azuchi–Momoyama period, subsequently becoming a daimyo in early Edo period, Japan.
- Okubo Tadayo was the eldest son of Okubo Tadakazu, a hereditary retainer of the Tokugawa clan.
- He was born in what is now part of the city of Okazaki in Mikawa Province, and accompanied Tokugawa Ieyasu in all of his campaigns, including the Battle of Mikatagahara (1573). He also fought in the Battle of Nagashino (1575).
- Nicknamed Shinjuro (???), he rose to become considered one of Ieyasu's sixteen generals and was entrusted with Futamata Castle in Totomi Province.
- Upon the assassination of Oda Nobunaga in 1582, Ieyasu expanded his rule into Shinano Province, with Okubo Tadayo assigned to managing the campaign from his base at Komoro Castle.
- After the Battle of Odawara (1590), Ieyasu was transferred from the Tokai region to the provinces of the Kanto region.
- Toyotomi Hideyoshi ordered that Okubo Tadayo be raised at that point to the status of daimyo, 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, Okubo Tadachika
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