Iga Province

Map of Japanese provinces with Iga province highlighted

Iga Province (伊賀国 Iga no kuni) was a province of Japan located in what is today part of western Mie Prefecture.[1] Its abbreviated name was Ishū (伊州). Iga bordered on Ise, Ōmi, Yamato, and Yamashiro Provinces. Its roughly coincides with the modern municipalities of Iga and Nabari.

Iga is classified as one of the provinces of the Tōkaidō. Under the Engishiki classification system, Iga was ranked as an “inferior country” (下国) and a “near country” (近国). Surrounded by mountains, historically, Iga Province was rather inaccessible due to extremely poor road conditions. However, the area is now relatively easy to access from nearby Nara and Kyoto, as well as the larger cities of Osaka and Nagoya.


Iga-Ueno Castle

Iga was separated from Ise Province during the Asuka Period, around 680 AD. The provincial capital was located in what is now part of the city of Iga, along with the ruins of the Kokubun-ji of Iga Province. The Ichinomiya of the province is the Aekuni Jinja (敢國神社), which is also located in what is now part of the city of Iga.

Little is known of the subsequent history of the province during the Heian and Kamakura periods. However, by the early Muromachi period, Iga became effectively independent from its nominal feudal rulers and established a form of republic. During this period, Iga came to be known as a center for ninjutsu, claiming (along with Kōka in what is now Shiga Prefecture) to being one of the birthplaces of the ninja clans. In 1581, two years after a failed invasion led by his son, the warlord Oda Nobunaga launched a massive invasion of Iga, attacking from six directions with a force of 40,000 to 60,000 men which effectively destroyed the political power of the ninja (see the Tenshō Iga War).

With the establishment of the Tokugawa shogunate, Iga was briefly (1600-1608) under the control of Iga-Ueno Domain, a 200,000 koku han during the rule of Tsutsui Sadatsugu, a former retainer of Toyotomi Hideyoshi. However, the Tsutsui clan was dispossessed in 1608, and the territory of the domain was given to Tōdō Takatora, the daimyō of Tsu Domain. It remained a part of Tsu Domain until the Meiji Restoration.

Notable Edo period people from Iga included the famous samurai, Hattori Hanzō and the haiku poet Matsuo Bashō. Iga Ueno Castle was retained by Tsu Domain as a secondary administrative center for the western portion of the domain.

After the abolition of the han system in July 1871, Tsu Domain became “Tsu Prefecture”, which later became part of Mie Prefecture.

Historical districts

See also



External links

Media related to Iga Province at Wikimedia Commons

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