without leaving any heirs, and the domain reverted to the shogunate. A cadet branch of the Ōkubo was created in 1684. The descendants of Ōkubo Tadatame (1554–1616), the sixth son of Ōkubo Tadakazu, has served as hatamoto to the Tokugawa shogunate. In 1687, Ōkubo Tadataka had amassed a revenue base of 10,000 koku, which qualified him to join the ranks of the daimyō. His son, Ōkubo Tsuneharu (1675–1728) was assigned to Karasuyama Domain (30,000 koku) in Shimotsuke Province in 1725, where his descendants remained until the Meiji restoration. The head of this clan line, Ōkubo Tadayori, was ennobled as a "Viscount" in the Meiji period. A cadet branch of the Ōkubo was created in 1706. This clan line was instituted for the descendants of Ōkubo Norihiro (1657–1737), who were installed at Ogino-Yamanaka Domain (13,000 koku) in Sagami Province from 1718 through 1868. The head of this clan line was ennobled as a "Viscount" in the Meiji period. Indirect Ōkubo kazoku lines Ōkubo Toshimichi, 1830–1878—1st Finance Minister and 1st Home Minister of Meiji's government. Genrō. was the son of a low-ranking samurai in the service of the Satsuma clan in Kagoshima. He claimed descent from a branch of the Ōkubo clan who migrated to Satsuma Province from Kyoto during the Sengoku period. For his services to the Meiji government, he was made a marquess (koshaku) under the kazoku peerage in 1884. In 1877, a former samurai from Suruga Province, Ōkubo Ichio (1817–1888) was ennobled as a "Viscount" under the kazoku system. Ōkubo Ichio had served as councilor to the last five Tokugawa shōguns, and during the Boshin War, had served as an emissary for Tokugawa Yoshinobu to negotiate the surrender of Edo to imperial forces. Under the Meiji government, he served as appointed governor of Shizuoka (1870) and Kyoto (1875), and as a member of the Genrōin (1877). He was also known as Ōkubo Tadahiro. Notes References Dalberg-Acton, John, George Walter Prothero and Adolphus William Ward and Stanley Mordaunt Leathes. (1906). The Cambridge Modern History, p. 865. London: Macmillan & Company Appert, Georges and H. Kinoshita. (1888). Ancien Japon. Tokyo: Imprimerie Kokubunsha McLaren, Walter. (1966). A Political History of Japan: During the Meiji Era, 1867–1912.. London: Routledge. Meyer, Eva-Maria. (1999). Japans Kaiserhof in de Edo-Zeit: Unter besonderer Berücksichtigung der Jahre 1846 bis 1867. Münster: Tagenbuch. Papinot, Edmond. (1906) Dictionnaire d'histoire et de géographie du japon. Tokyo: Librarie Sansaisha...Click link for digitized