Maruoka Domain

Arima Kiyosumi (有馬清純, February 14, 1644-January 26, 1703) was an Edo period daimyō. He was the eldest son of Arima Yasuzumi, the 2nd daimyō of Nobeoka Domain. His wife was a daughter of Okabe Yukitaka of Kishiwada Domain. In 1679, on the retirement of his father, he became daimyō of Nobeoka. In 1690, his domain suffered from a large-scale peasant uprising which he had difficulty in suppressing, and in 1692 he was demoted to Itoigawa Domain in Echigo Province, which had an equal kokudaka of 50,000 koku but was not classed as a “castle-holding” domain. In 1695 he was transferred to Maruoka, again with the same 50,000 kokudaka, which restored his status as castellan. He died in 1702.

Arima Kazunori (有馬一準, January 13, 1698-October 2, 1757) was the 2nd daimyō of Maruoka Domain. He was born in Maruoka Castle as the eldest son of Arima Kiyosumi and became daimyō in 1703 on the death of his father. His childhood name was Daikichi (大吉), and his name as daimyō was initially Arima Masazumi (真純), which he later changed to Sumihisa (純寿) and then to Hisazumi (寿純). He only took the name of Kazunori after this retirement. His courtesy title was Saemon-no-suke, and his court rank was Junior Fifth Rank, Lower Grade. His wife was the adopted daughter of Akimoto Takatomo of Kawagoe Domain. In 1711, he managed to change the status of the Arima clan from that of tozama to fudai daimyō. However, during his tenure the domain suffered greatly from crop failures in 1706, 1721and 1723, which led to a large-scale peasant's revolt in 1724. His efforts to reform the domain's finances through issue of silver certificates and increasing loans had only mixed results. In 1733, he retired in favour of his son. He died in 1757.

Arima Takazumi (有馬孝純, January 18, 1718-March 27, 1757) was the 3rd daimyō of Maruoka Domain. He was born in Maruoka Castle as the eldest son of Arima Kazunori and became daimyō in 1733 on the retirement of his father. His courtesy title was Hyūga-no-kami, and his court rank was Junior Fifth Rank, Lower Grade. His wife was the adopted daughter of Inaba Masatomo of Yodo Domain. He continued his father's economic recovery policies, which were greatly assisted by the opening of a copper mine in his domain in 1735. He died a few months before his father at Maruoka Castle.

Arima Masazumi (有馬允純, April 24, 1747-September 28, 1772) was the 4th daimyō of Maruoka Domain. He was born at the clan's Edo residence as the eighth son of Arima Takazumi, and was made heir as all of his elder brothers had been born to concubines. He became daimyō in 1757 on the death of his father. His courtesy title was Saemon-no-suke, and his court rank was Junior Fifth Rank, Lower Grade. His wife was the granddaughter of Matsudara Sadasato of Imabari Domain. He attempted to implement land reforms in his domain, but died in 1772 at the age of 26.

Arima Shigezumi (有馬誉純, May 22, 1769-December 5, 1836) was the 5th daimyō of Maruoka Domain. He was eldest son of Arima Masazumi, and became daimyō in 1772 on the death of his father. His courtesy title was Saemon-no-suke, and his court rank was Junior Fifth Rank, Lower Grade. His wife was the daughter of Inaba Masahiro of Yodo Domain. He was received in formal audience by Shōgun Tokugawa Ieharu in 1782. In 1778, he domain suffered from a widespread peasant's revolt, to which he responded by implementing land reform and tax reform measures begun by his father. In 1791 he was appointed a sōshaban and 1810 he was appointed jisha-bugyō. He rose to the post of wakadoshiyori in 1812. He established a han school within the domain in 1804. He resigned as wakadoshiyori in 1819, citing ill health, but continued as daimyō until 1830. he died in 1836.

Arima Norizumi (有馬誉純, June 8, 1804-October 21, 1837) was the 6th daimyō of Maruoka Domain. He was fourth son of Yanagihara Masaatsu of Takada Domain, and was adopted as heir to Arima Shigezumi in 1820 and was received in formal audience by Shogun Tokugawa Ienari the same year. He became daimyō in 1830 on the retirement of his stepfather. His courtesy title was Saemon-no-suke, and his court rank was Junior Fifth Rank, Lower Grade. His wife was the fourth daughter of Arima Shigezumi. He died in 1837.

Arima Harusumi (有馬温純, 1829-June 9, 1855) was the 7th daimyō of Maruoka Domain. He was a grandson of Arima Shigezumi, and was adopted as heir to Arima Norizumi in 1836, becoming daimyō a year later on Norizumi's death. He was received in formal audience by Shōgun Tokugawa Ieyoshi in 1841. His courtesy title was Hyūga-no-kami, and his court rank was Junior Fifth Rank, Lower Grade. His wife was the daughter of Arima Norizumi. He was ordered by the Tokugawa shogunate to construct the Maruyama Domain Battery against possible incursions by foreign vessels in 1852. In died in 1855 at the age of 27.

Arima Michizumi (有馬道純, October 8, 1837 - May 24, 1903) was the 8th (and final) daimyō of Maruoka Domain. He was the third son of Honda Tadachika of Yamasaki Domain. His grandfather, Honda Tadayoshi was the younger son of Arima Takazumi and had been adopted in the Honda clan. As Arima Harusumi only had daughters, he was adopted as heir and became daimyō in 1855. In 1862 he was appointed jisha-bugyō and became a wakadoshiyori in 1863 and rose to the office of rōjū the same year. In 1868, he pledged fealty to the new Meiji government and served as Imperial Governor of Maruyama until the abolition of the han system in 1871. He became a viscount (shishaku) in the kazoku peerage system. He died in 1903 and his grave is at Yanaka Cemetery.