| Ōgaki Domain 大垣藩 | |
|---|---|
| Domain of Japan | |
| 1601–1871 | |
| Capital | Ōgaki Castle |
| Area | |
| • Coordinates | 35°21′43″N136°36′58″E / 35.36194°N 136.61611°E /35.36194; 136.61611 |
| • Type | Daimyō |
| Historical era | Edo period |
• Established | 1601 |
• Disestablished | 1871 |
| Today part of | part ofGifu Prefecture |

Ōgaki Domain (大垣藩,Ōgaki-han) was afudaifeudal domain under theTokugawa shogunate ofEdo periodJapan. It was located inMino Province, in theTōkai region of centralHonshu. The domain was centered atŌgaki Castle, in what is now the city ofŌgaki inGifu Prefecture. It was ruled for most of its existence by the Toda clan.[1]
Ōgaki is located at a strategic point on the road fromMino Province toŌmi Province andKyoto and was hotly contested in theSengoku period betweenSaitō Dōsan andOda Nobuhide. UnderOda Nobunaga,Ujiie Naotomo followed by his sonUjiie Naomasa ruled the area. UnderToyotomi Hideyoshi, the area was entrusted toIkeda Tsuneoki,Toyotomi Hidetsugu,Toyotomi Hidenaga,Katō Mitsuyasu, Hitotsuyanagi Naosuke,Toyotomi Hidekatsu and finally to Itō Morimasa. In 1600, Itō Morimasa wasdaimyō of a 30,000koku domain, which was a problem forTokugawa Ieyasu since Itō was a staunch supporter ofIshida Mitsunari and Ōgaki was a very short distance fromSekigahara. However, Itō also proved to be an inept commander and failed to attack the Tokugawa armies when they were the most vulnerable, and as a result was dispossessed after theBattle of Sekigahara.
In 1601, Tokugawa Ieyasu established Ōgaki Domain, installing Ishikawa Yasumichi asdaimyō with akokudaka of 50,000koku. The Ishikawa clan were transferred toHita Domain inBungo Province in 1616 as a reward for their services at theBattle of Osaka. They were replaced by a cadet branch of theHisamatsu-Matsudaira from 1616 to 1624, followed by the Okabe clan from 1624 to 1633, and then by another cadet branch of the Hisamatsu-Matsudaira from 1633 to 1635.[1]
In 1635,Toda Ujikane was transferred to Ōgaki fromAmagasaki Domain inSettsu Province, and thekokudaka of the domain was increased to 100,000koku. The Toda clan would continue to rule Ōgaki until theMeiji restoration.[1]
Toda Ujikane was instrumental in opening new rice fields, irrigation and flood control measures, planting of forests and reforming the remuneration system for his retainers. He also maintained Ōgaki Castle. under the 3rddaimyō , Toda Ujisada, 3000koku of new rice fields were given to his brother, Toda Ujishige, which when combined with the 7000koku already under his name, placed him over the threshold to becomedaimyō of a cadet domain, theŌgaki Shinden Domain. This sub-domain would also endure to the Meiji restoration. The 6thdaimyō, Toda Ujihide, attempted to implement fiscal reforms, which failed due to a peasant's revolt in 1766. The 7thdaimyō, Toda Ujinori, served as arōjū underTokugawa Ienari during a time of increasing Russian incursions into Japanese northern waters. The 8thdaimyō, Toda Ujitsune, founded thehan school, "Chidokan" in 1840. The 9thdaimyō, Toda Ujimasa reformed the domain's military in 1856. The 10thdaimyō, Toda Ujiakira attempted further reforms, but was frustrated by theAnsei Purge. The finaldaimyō,Toda Ujitaka was branded an "enemy of the crown" after theBattle of Toba-Fushimi in theBoshin War, but was able to defect to the imperial side and served as messenger of the court to other domains along theTōsandō to urge them to submit. He was later awarded a 30,000koku increase by theMeiji government, but soon afterwards Ōgaki Domain became Ōgaki Prefecture due to theabolition of the han system, and was then absorbed into the newGifu Prefecture.[1]
As with most domains in thehan system, Ōgaki Domain consisted of several discontinuous territories calculated to provide the assignedkokudaka, based on periodiccadastral surveys and projected agricultural yields.[2][3]
| # | Name | Tenure | Courtesy title | Court Rank | kokudaka |
|---|---|---|---|---|---|
| 1 | Ishikawa Yasumichi (石川康通) | 1560 - 1607 | Nagato-no-kami (長門守) | Lower 5th (従五位下) | 50,000koku |
| 2 | Ishikawa Ienari (石川家成) | 1607 - 1609 | Hyuga-no-kami (日向守) | Lower 5th (従五位下) | 50,000koku |
| 3 | Ishikawa Tadafua (石川忠総) | 1609 - 1616 | Tonomo-no-kami (主殿頭) | Lower 5th (従五位下) | 50,000koku |
| 1 | Matsudaira Tadayoshi (松平忠良) | 1612 - 1624 | Kai-no-kami (甲斐守) | Lower 5th (従五位下) | 20,000koku |
| 2 | Matsudaira Norinaga (松平憲良) | 1624 - 1624 | Inaba-no-kami (因幡守) | Lower 5th (従五位下) | 20,000koku |
| 1 | Okabe Nagamori (岡部長盛) | 1624 - 1632 | Naizen-no-kami (内膳正) | Lower 5th (従五位下) | 50,000koku |
| 2 | Okabe Nobukatsu (岡部宣勝) | 1632 - 1633 | Mino-no-kami (美濃守) | Lower 5th (従五位下) | 50,000koku |
| 1 | Matsudaira Sadatsuna (松平定綱) | 1633 - 1635 | Etchu-no-kami (越中守) | Lower 4th (従四位下) | 60,000koku |
| 1 | Toda Ujikane (戸田氏鉄) | 1635 - 1651 | Uneme-no-kami (采女正) | Lower 4th (従四位下) | 100,000koku |
| 2 | Toda Ujinobu (戸田氏信) | 1651 - 1671 | Uneme-no-kami (采女正) | Lower 4th (従四位下) | 100,000koku |
| 3 | Toda Ujiaki (戸田氏西) | 1671 - 1684 | Tajima-no-kami (但馬守) | Lower 4th (従四位下) | 100,000koku |
| 4 | Toda Ujisada (戸田氏定) | 1684 -1723 | Uneme-no-kami (采女正) | Lower 5th (従五位下) | 100,000koku |
| 5 | Toda Ujinaga (戸田氏長) | 1723 - 1735 | Ise-no-kami (伊勢守) | Lower 4th (従四位下) | 100,000koku |
| 6 | Toda Ujihide (戸田氏英) | 1735 - 1768 | Uneme-no-kami (采女正) | Lower 5th (従五位下) | 100,000koku |
| 7 | Toda Ujinori (戸田氏教) | 1768 - 1806 | Uneme-no-kami (采女正) | Lower 5th (従五位下) | 100,000koku |
| 8 | Toda Ujitsune (戸田氏庸) | 1806 - 1841 | Uneme-no-kami (采女正) | Lower 5th (従五位下) | 100,000koku |
| 9 | Toda Ujimasa (戸田氏正) | 1841 - 1858 | Uneme-no-kami (采女正) | 3rd ( 従三位) | 100,000koku |
| 10 | Toda Ujiakira (戸田氏彬) | 1858 - 1865 | Uneme-no-kami (采女正) | Lower 4th (従四位下) | 100,000koku |
| 11 | Toda Ujitaka (戸田氏共) | 1865 -1871 | Uneme-no-kami (采女正), Jiju (侍従) | Lower 4th (従四位下) | 100,000koku |