He was born as the first boy of Tadayo OKUBO, a senior vassal of the Matsudaira clan (Tokugawa clan), in Kamiwada, Nukata County, Mikawa Province (present-day Okazaki City, Aichi Prefecture) in 1553. |
天文22年(1553年)、松平氏(徳川氏)の重臣・大久保忠世の長男として三河国額田郡上和田(愛知県岡崎市)で生まれる。 |