Ashikaga Yoshiaki (5 December 1537 – 19 October 1597) was the fifteenth and final shogun of the Ashikaga shogunate in Japan, reigning from 1568 to 1573. His father, Ashikaga Yoshiharu, held the position of the twelfth shogun, and his brother, Ashikaga Yoshiteru, followed as the thirteenth shogun.
Born to Ashikaga Yoshiharu on 5 December 1537, Yoshiaki initially entered Kofuku-ji temple as a monk. However, when his elder brother Yoshiteru fell victim to the Miyoshi clan, Yoshiaki returned to secular life, assuming the name "Yoshiaki". During this time, the Ashikaga shogunate faced significant decline, with its authority largely disregarded throughout Japan. Nevertheless, various factions still vied for control of the central government, as it retained some prestige despite its weakened state. Ashikaga Yoshiteru made attempts to overthrow the Miyoshi, who effectively controlled him. Yet, his conspiracies led to a coup orchestrated by the Miyoshi and Matsunaga Hisahide, ultimately compelling Yoshiteru to take his own life. Subsequently, they attempted to install Ashikaga Yoshihide as the fourteenth shogun in Kyoto, but they struggled to maintain control over the capital.
Not until Ashikaga Yoshiaki secured the support of warlord Oda Nobunaga did an effective central authority return to Kyoto. In 1568, Oda's armies entered Kyoto, reinstating the Muromachi shogunate with Ashikaga Yoshiaki as a nominal shogun. This marked the onset of the Azuchi–Momoyama period. The fourteenth shogun, Yoshihide, was deposed without ever setting foot in the capital. In due course, Yoshiharu grew discontented with Oda Nobunaga's dominance and sought to reclaim state power.
In 1573, Ashikaga Yoshiharu sought the assistance of another warlord, Takeda Shingen, in overthrowing the Oda clan. In response, Oda Nobunaga deposed the shogun, compelling him to flee the capital. Most historians consider this the definitive conclusion of the Ashikaga shogunate. Yoshiaki embraced the life of a Buddhist monk, shaving his head and adopting the name Sho-san, later changed to Rei-o In. Nevertheless, Yoshiaki did not formally relinquish his shogunal title. Consequently, the Ashikaga shogunate's symbolic existence could be said to have persisted for several more years. Despite a restored central authority in Kyoto and Oda Nobunaga's efforts to unify the country, the power struggle among warring states persisted. Yoshiaki served as a focal point for anti-Oda forces. He even raised troops and dispatched them to engage Oda Nobunaga's army during the Ishiyama Hongan-ji War. Even after Oda Nobunaga's passing in 1582, the former shogun continued his endeavors to regain power.
See also
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Yamagata Masakage
Masakage was one of Takeda Shingen’s most loyal and capable commanders. He was included in the famous list of the “Twenty-Four Generals of Takeda Shingen” and also belonged to the inner circle of four especially trusted warlords known as the Shitennō.
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Yagyu Munenori
Yagyū Munenori began his service under Tokugawa Ieyasu while his father, Yagyū Muneyoshi, was still at his side. In 1600, Munenori took part in the decisive Battle of Sekigahara. As early as 1601, he was appointed a kenjutsu instructor to Tokugawa Hidetada, Ieyasu’s son, who later became the second shogun of the Tokugawa clan.
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Yagyu Muneyoshi
A samurai from Yamato Province, he was born into a family that had been defeated in its struggle against the Tsutsui clan. Muneyoshi first took part in battle at the age of sixteen. Due to circumstances beyond his control, he was forced to enter the service of the Tsutsui house and later served Miyoshi Tōkei. He subsequently came under the command of Matsunaga Hisahide and in time became a vassal first of Oda and later of Toyotomi.
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Endo Naozune
Naozune served under Azai Nagamasa and was one of the clan’s leading vassals, renowned for his bravery and determination. He accompanied Nagamasa during his first meeting with Oda Nobunaga and at that time asked for permission to kill Nobunaga, fearing him as an extremely dangerous man; however, Nagamasa did not grant this request.
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Hosokawa Sumimoto
Sumimoto came from the Hosokawa clan: he was the biological son of Hosokawa Yoshiharu and at the same time the adopted son of Hosokawa Masamoto, the heir of Hosokawa Katsumoto, one of the principal instigators of the Ōnin War. Masamoto was homosexual, never married, and had no children of his own. At first he adopted Sumiyuki, a scion of the aristocratic Kujō family, but this choice provoked dissatisfaction and sharp criticism from the senior vassals of the Hosokawa house. As a result, Masamoto changed his decision and proclaimed Sumimoto as his heir, a representative of a collateral branch of the Hosokawa clan that had long been based in Awa Province on the island of Shikoku. Almost immediately after this, the boy became entangled in a complex and bitter web of political intrigue.
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Honda Masanobu
Masanobu initially belonged to the retinue of Tokugawa Ieyasu, but later entered the service of Sakai Shōgen, a daimyo and priest from Ueno. This shift automatically made him an enemy of Ieyasu, who was engaged in conflict with the Ikkō-ikki movement in Mikawa Province. After the Ikkō-ikki were defeated in 1564, Masanobu was forced to flee, but in time he returned and once again entered Ieyasu’s service. He did not gain fame as a military commander due to a wound sustained in his youth; nevertheless, over the following fifty years he consistently remained loyal to Ieyasu.
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Honda Masazumi
Masazumi was the eldest son of Honda Masanobu. From a young age, he served Tokugawa Ieyasu alongside his father, taking part in the affairs of the Tokugawa house and gradually gaining experience in both military and administrative matters. At the decisive Battle of Sekigahara in 1600, Masazumi was part of the core Tokugawa forces, a clear sign of the high level of trust Ieyasu placed in him. After the campaign ended, he was given a highly sensitive assignment—serving in the guard of the defeated Ishida Mitsunari, one of Tokugawa’s principal enemies—an obligation that required exceptional reliability and caution.
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Hojo Shigetoki
Hōjō Shigetoki, the third son of Hōjō Yoshitoki, was still very young—only five years old—when his grandfather Tokimasa became the first member of the Hōjō clan to assume the position of shogunal regent.
