Tozama Daimyō

was a class of powerful magnates or ''daimyō'' (大名) considered to be outsiders by the ruler of Japan.Kenkyusha's New Japanese-English Dictionary, ''Tozama daimyō'' were classified in the Tokugawa Shogunate (江戸幕府) as ''daimyō'' who became hereditary vassals of the Tokugawa after the Battle of Sekigahara (関ヶ原の戦い).
''Tozama daimyō'' were discriminated against by the Tokugawa and opposed to the ''fudai daimyō'' during the Edo period (江戸時代).

Origins

Originally, the concept of ''tozama daimyō'' emerged in Japan along with the ''daimyō'' after the rise of the Kamakura Shogunate (鎌倉幕府) in the 12th Century. ''Tozama'' applied to a ''daimyō'' who was considered an "outsider" by successive ''Shōguns'', Emperors, and ''shikkens'' (執権) that ruled over Japan at any given time. Typically, a ''tozama'' had a loose or indirect relationship with the current ruler, and this definition remained intact during the subsequent Ashikaga Shogunate (足利幕府, 1336–1573, also known as the Muromachi (室町幕府)), and the Sengoku period (戦国時代, 1467-1615, "Age of Warring States").

Edo period

The establishment of the Tokugawa Shogunate in 1600 redefined ''tozama daimyō'' as the ''daimyō'' who submitted as vassals to the Tokugawa only after the decisive Battle of Sekigahara, including those who fought for the Tokugawa at the battle but were not official vassals. Tokugawa Ieyasu had treated the great ''tozama'' amicably, but his grandson Tokugawa Iemitsu was less tolerant of them during his rule between 1623 and 1626. ''Tozama'' and their descendants were distrusted and the Tokugawa discriminated against them in favor of the ''fudai daimyō''. ''Tozama'' were largely excluded from the shogunate government, the ''Bakufu'', and their numbers were limited compared to the ''fudai'' who filled the administration's ranks. Many of the largest and wealthiest ''han'' — the personal feudal domains of the ''daimyō'' — were ruled by ''tozama'', including the Maeda clan of the Kaga Domain with a value of 1,000,000 ''koku'' under the ''Kokudaka'' system. However, this was a deliberate Tokugawa plan to keep the ''tozama'' in check, as ''fudai daimyō'' were stationed in smaller domains in strategic locations, including along major roads and near important cities. Many notable ''tozama'' families, including the Shimazu, the Mori, the Date, the Hachisuka, and the Uesugi, were based in western and northern Honshu, in contrast to the Tokugawa based in the eastern city of Edo. Most, but not all, of these families had been living in roughly the same regions for centuries before the Tokugawa shogunate. ''Tozama daimyō'' heavily profited from trade in the 17th century, particularly in western Japan where most of the country's important ports were located. The shogunate responded in ''Sakoku'' policies of isolationism, preventing the ports of western Honshu and Kyūshū from trading with foreigners and sending Japanese vessels abroad.

The decline of the Tokugawa Shogunate during the ''Bakumatsu'' period from 1853 led to lessening discrimination against ''tozama daimyō''. In November 1864, Matsumae Takahiro, the ''tozama daimyō'' of the Matsumae clan, was appointed as ''rōjū'', one of the highest-ranking government posts in the Tokugawa government. ''Tozama'' formed the nucleus of the growing anti-Tokugawa movement, with the Satsuma and Chōshū (Shimazu and Mori clans respectively) primarily responsible for the fall of the Tokugawa Shogunate in the Meiji Restoration. Rallying other ''tozama'' and even ''fudai'' to their cause in support of the Imperial Court, they fought against the shogunate, Aizu Domain, and the Ōuetsu Reppan Dōmei during the Boshin War of 1868 to 1869. Many people from Satsuma and Chōshū dominated politics of the Empire of Japan in the ensuing decades, and well into the 20th century, as part of the Meiji oligarchy. The distinction between ''tozama'' and ''fudai'' became obsolete when the ''daimyō'' were morphed into the new ''kazoku'' aristocracy.

References

{{Reflist
*Ooms, Herman (1975). ''Charismatic Bureaucrat''. Chicago: University of Chicago Press.

Daimyo
Japanese historical terms
Edo period