Ōkubo clan

In this Japanese name, the family name is Ōkubo.
Ōkubo clan

Ōkubo clan crest
Home province Mikawa
Parent house Fujiwara clan via the Utsunomiya clan
Titles daimyo, viscount
Founder Ōkubo Tadatoshi
Final ruler Ōkubo Tadayoshi (II)
Founding year 15th century
Dissolution still extant
Ruled until 1873 (Abolition of the han system)
Cadet branches four cadet branches to the Meiji Restoration

The Ōkubo clan (大久保氏 Ōkubo-shi) were a samurai kin group which rose to prominence in the Sengoku period and the Edo periods.[1] Under the Tokugawa shogunate, the Ōkubo, as hereditary vassels of the Tokugawa clan, were classified as one of the fudai daimyō clans.[2]

Ōkubo clan genealogy

The Ōkubo clan traces its origins to 16th century Mikawa province.[2] The Ōkubo claimed descent from the Utsunomiya clan, descendants of Fujiwara no Michikane (955–995).[3] Ōkubo Tadatoshi (1499–1581) and his younger brother Ōkubo Tadakazu (1511–1583) were the first to abandon the Utaunomiya name for "Ōkubo". Both brothers were among the seven closest retainers of Matsudaira Hirotada, the father of Tokugawa Ieyasu.

Main branch

The head of this clan, Ōkubo Tadanori line was ennobled as a viscount ("shishaku") in the kazoku peerage system.[3]

Cadet lines

Indirect Ōkubo kazoku lines


  1. Meyer, Eva-Maria. "Gouverneure von Kyôto in der Edo-Zeit." Universität Tübingen (in German)
  2. 1 2 3 Appert, Georges. (1888). Ancien Japon, p. 75
  3. 1 2 3 4 5 6 7 8 9 Papinot, Edmund. (2003). Nobiliare du Japon -- Ōkubo, p. 46; Papinot, Jacques Edmond Joseph. (1906). Dictionnaire d’histoire et de géographie du Japon; retrieved 2012-11-7
  4. Odawara castle
  5. Röhl, William. (2005). History of Law in Japan Since 1868, p. 98; Acton, John et al. (1906). The Cambridge Modern History, p. 865. London: Macmillan & Company
  6. McLaren, Walter. (1966). A Political History of Japan: During the Meiji Era, 1867-1912, p. 117


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