Ōkubo Tadataka

Ōkubo Tadataka (1560-1639), commonly known as Ōkubo Hikozaemon, was a senior retainer of the Tokugawa clan from Mikawa Province (present-day Aichi Prefecture) who served Tokugawa Ieyasu and participated in numerous battles as a seasoned warrior. His later work Mikawa Monogatari, which recounts the founding era of the Tokugawa house through the Osaka Campaign from the perspective of a Mikawa samurai, is prized as a historical source and continues to be read as a document embodying the spirit of bushido and loyalty. In later kōdan storytelling he was portrayed as "Tenka no Go-ikenban" (the realm's candid counselor), known for his bold character and forthright remonstrations. He served as yari-bugyō (commissioner of spearmen) in the Osaka Campaign and later became hata-bugyō (commissioner of banners) under Tokugawa Iemitsu.