
Arima Toyouji was a prominent figure in the late Sengoku and early Edo periods, holding the titles of Daimyo and Lord of Tamba Fukuchiyama. He also had the distinction of being the inaugural Lord of Kurume Domain. Born in Mitsuda Castle at Miki, Arima-gun, Harima Province (present-day Hyogo Prefecture), Toyouji's early years were marked by service to the daimyo Watarase Shigeaki, where he held the position of chief councilor. This allegiance remained until the Watarase clan's involvement in the Toyotomi Hidetsugu incident of 1595, which culminated in their collective seppuku. Subsequently, Toyouji realigned himself with Hideyoshi, earning him a stipend of 30,000 koku and lands in Totomi (now Shizuoka Prefecture).
During Hideyoshi’s Korean Campaign, Toyouji dispatched a contingent of 200 men to safeguard Nagoya Castle in Kyushu. Following Hideyoshi's passing, he allied with Tokugawa Ieyasu and led 900 troops in the Battle of Sekigahara. This included a pre-battle assault on Gifu Castle and active involvement in the main confrontation itself.
For his exceptional contributions, Toyouji received the newly established Tamba Fukuchiyama domain, along with an allocation of 60,000 koku. He further distinguished himself in the 1614 winter Siege of Osaka.
Earlier, in 1606, he had been called upon to contribute manpower, resources, and funds for the reconstruction of Edo Castle’s central Honmaru precincts. The following year, similar requests were made for Sunpu Castle, and in 1618, Osaka Castle also received his support. These ventures, while commendable, placed considerable strain on the domain's finances.
Due to their commendable service, the Arima clan was relocated to Kurume Domain in late 1620, receiving an endowment of 210,000 koku. Adhering to the newly enforced Tokugawa law, which permitted only one castle per domain, Arima initiated the reconstruction of Kurume Castle. Salvaging components from the now-defunct Enokizu and Fukushima Castles, he simultaneously improved economic conditions for all within his domain.
Despite his advancing age, between December 1637 and April 1638, Arima Toyouji led 6,300 men in the Shimabara Rebellion under the Tokugawa banner.
Arima Toyouji was not solely a warrior, but a man of culture, distinguished as one of the Seven Great Followers of Sen No Rikyu. He was also an adherent of Zen Buddhism and a scholar of Confucianism.
Upon his demise at the age of 74, two of his most trusted advisors followed suit, committing Junshi—a form of ritual suicide—to serve their lord in the afterlife. His son, Tadayori, assumed leadership of the clan.
See also
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Asakura Yoshikage

Yoshikage was the eldest son of Asakura Takakage. He began ruling in 1548 at the age of fifteen, and during his reign he twice defeated the Ikko-ikki forces, in 1555 and 1564. Yoshikage supported the Saito family in their struggle against Oda Nobunaga in 1561–1567. When Ashikaga Yoshiaki fled Kyoto in 1565 after the assassination of his older brother, Shogun Ashikaga Yoshiteru, Yoshikage gave him refuge. However, he was unable to provide sufficient support for Yoshiaki's claim to the title of shogun, and Yoshiaki had to seek help from Oda Nobunaga.
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Asakura Norikage

Norikage came from the ancient samurai clan of Asakura, whose members considered themselves descendants of Prince Kusakabe, son of Emperor Tenmu (631–686). He was the eighth son of daimyo Asakura Takakage and was named Kotaro in childhood. Over time, Asakura Norikage became the pillar of the Asakura clan and was undoubtedly its most talented commander during that difficult period when the clan was experiencing internal difficulties, uprisings by the Ikko-ikki sect, and instability in the lands surrounding the capital. Although Norikage himself was never a daimyo, he served as an advisor to three generations of Asakura clan leaders. He spent his entire life on military campaigns. After his father's death in 1481, Norikage entered the service of his brother, Asakura Ujikage.
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Asai (Azai) Nagamasa

Asai Nagamasa inherited power from his father, Asai Hisamasa, when he was only fifteen years old. Both brave and impulsive, he proved himself a capable commander, managing to regain lands from the Rokkaku clan that had previously been lost by his father. After a territorial dispute with Oda Nobunaga over the province of Mino, Nagamasa formed an alliance with Nobunaga and married his sister Oichi, who was famous for her beauty. In 1570, when Oda Nobunaga declared war on the Asakura family, Nagamasa sided with the Asakura because he had long-standing ties with them. This unexpected move threatened Nobunaga's invasion of the Asakura lands by threatening him from the rear. Oda managed to save his army, not without the help of Tokugawa Ieyasu, but relations between Nobunaga and Asai were permanently damaged.
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Amano Yasukage

Yasukage was born into the family of the samurai Amano Kagetaka and was given the name Matagoro at birth. He later changed his name to Kageyoshi, and then to Yasukage. From an early age, Yasukage served Tokugawa Ieyasu and accompanied him when he was held hostage by Imagawa Yoshimoto. His loyalty and devotion to Ieyasu from a young age laid the foundation for Yasukage's future military and administrative career.
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Amago Tsunekisa

The Amago clan (also spelled Amako) was founded in 1392, when Sasaki Takahisa, who was orphaned at the age of three, took the new surname Amago, meaning “son of a nun,” in honor of the nun who raised him. Since the Sasaki family descended from Emperor Uda (866–931), the Amago clan traced its lineage back to this emperor. From around 1396, the Amago clan's headquarters was the mountain castle of Gassan-Toda in Izumo Province. Until the start of the Onin War, the Amago clan remained a minor clan in the service of the Kyogoku clan, which was also a descendant of the Sasaki clan. The Amago clan historically held the position of vice-governor of Izumo Province.
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Abe Masakatsu

Masakatsu came from the ancient Abe clan, whose progenitor, according to the Nihon Shoki chronicle, is considered to be Prince Ohiko-no-mikoto (2nd century BC), son of Emperor Kogen. From the Nara period (710–784), members of the Abe clan held high positions in the government, including at the ministerial level, and from the Heian period (794–1185) onwards, the clan gained widespread fame, which continued until the Edo period.
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Toyotomi Hidenaga
Toyotomi Hidenaga was an outstanding military commander and strategist of his time, who was unjustly overshadowed by his half-brother, the great Toyotomi Hideyoshi. At different stages of his life, he was known by the names Kinoshita Koichiro, Hashiba Nagahide, and Hashiba. Despite his relative obscurity among the general public, Hidenaga was considered one of the best minds of his time, on par with the renowned Kuroda Kanbei.
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Matsudaira Nagachika

Matsudaira Nagachika (1473–1544?) was a daimyō of Japan’s Sengoku period and the third son of Matsudaira Chikatada. He was also the great-grandfather of Tokugawa Ieyasu.
