
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.
In 1565, he was appointed one of three “special commissioners” (San-bugyo) in the province of Mikawa, along with Honda Shigetugu and Koriki Kiyonaga. This position was a testament to the high level of trust that Ieyasu placed in Yasukage, entrusting him with the management of important administrative and military affairs.
Together with Okubo Tadao, Yasukage took part in the famous night raid against the Takeda clan's troops after the Battle of Mikatagahara in 1573. This battle was one example of his determination and ability to act in difficult conditions that required courage, discipline, and precise execution of orders.
In 1586, Yasukage commanded a detachment of shinobi from Koga and was rewarded for his successful leadership with lands yielding an income of 2,200 kan. His participation in operations requiring stealth and strategic thinking once again confirmed his talent as an experienced commander and reliable vassal of the Tokugawa house.
After Ieyasu moved his headquarters to the Kanto region in 1590, Yasukage was granted a fief in Shimosa Province with an income of 3,000 koku of rice, as well as an important administrative position as matibugyo in Edo, responsible for city management and order.
In 1601, Yasukage became the owner of the Kokokuji domain with an income of 10,000 koku of rice, which made him a full-fledged daimyo. This status was the culmination of his long and loyal service to the Tokugawa clan.
In his later years, Yasukage retired from public life and settled at the Sainenji temple in Odawara, where he led a quiet life devoted to contemplation and spiritual practices. He died there at the age of 77, leaving behind a memory of himself as a loyal servant, a wise administrator, and a man who lived his life in devotion to his lord and duty.
See also
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Watanabe (Hanzo) Moritsuna

Moritsuna was the son of Watanabe Takatsuna, a vassal of the Matsudaira clan. He was the same age as Tokugawa Ieyasu and was held hostage with him by the Imagawa clan. In 1557, Moritsuna joined Ieyasu.
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Ban Naoyuki

He was also known as Ban Danemon. In the early stages of his military career, he served under Kato Yoshiaki, one of the so-called “Seven Spears of Shizugatake,” who later became the ruler of the Aizu region in Mutsu Province. Naoyuki held the position of commander of the arquebusiers (teppo taishō).
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Asakura Toshikage

The Asakura family, who claimed kinship with several emperors, lived in the province of Echizen. Its representatives were considered hereditary vassals of the Shiba clan. From the mid-15th century until their defeat by Oda Nobunaga's army in 1573, which resulted in the final destruction of the Asakura clan, they were a significant military and economic force.
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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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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.
