was a powerful ''
daimyō'' and the 16th Chief of
Shimazu clan of
Satsuma Province, the eldest son of
Shimazu Takahisa.
He is a renowned as a great general, who managed to subjugate Kyushu through the deft maneuvering of his three brothers. Eventually in 1584, Yoshihisa succeeded controlled the entire
Kyushu region.
Early life and rise
His mother was a daughter of ''Iriki'in Shigesato'' (入来院重聡), ''Sesshō'' (雪窓).
Shimazu Yoshihiro,
Shimazu Toshihisa and
Shimazu Iehisa were his brothers. He is said to have been born in
Izaku Castle in 1535. His childhood name was ''Torajumaru'' (虎寿丸) but he went by the name of ''Matasaburō'' (又三郎). On his coming-of-age (
genpuku), he took the name of ''Tadayoshi''(忠良) but after receiving a
kanji from the
shōgun Ashikaga Yoshiteru, changed to ''Yoshitatsu'' (義辰). He later changed his name to ''Yoshihisa''. He married his own aunt and after her death, married his relative, a daughter of
Tanegashima Tokitaka.
In 1566, he succeeded his father as the head of
Shimazu clan, becoming the clan's sixteenth leader.
Unification of Kyushu
Working together with his brothers
Yoshihiro,
Toshihisa, and
Iehisa, he launched a campaign to unify
Kyūshū
is the third-largest island of Japan's five main islands and the most southerly of the four largest islands ( i.e. excluding Okinawa). In the past, it has been known as , and . The historical regional name referred to Kyushu and its surround ...
.
Starting in 1572 with a victory against
Itō clan at the
battle of Kizaki and the
Siege of Takabaru in 1576,
Yoshihisa continued to win battles.
In 1578, he defeated the
Ōtomo clan at the
battle of Mimigawa, though he did not take their territory;
Later, in 1581, Yoshihisa
took Minamata castle with a force of 115,000 men;
In early 1584, he was victorious in
Battle of Okitanawate against
Ryūzōji clan and defeated the Aso clan.
By the middle of 1584, the
Shimazu clan controlled;
Chikugo,
Chikuzen,
Hizen,
Higo,
Hyūga,
Osumi, and
Satsuma, most of Kyūshū with the exception of Ōtomo's domain and unification was a feasible goal.
Conflict with Hideyoshi
During Shimazu's attempt to unify Kyushu, other clans appealed to
Toyotomi Hideyoshi for help; in 1584 the Otomo and Ryuzoji asked Hideyoshi for aid, and though he had been unable to help at that time, Hideyoshi interceded, requesting that Yoshihisa make peace with Otomo. In response, Yoshihisa derided his attempt to intervene, not seeing Hideyoshi as being in a position to invade Kyushu.
In 1585, Yoshihisa
took Otomo's Iwaya castle resulted after the Shimazu invasion of
Chikuzen Province. Later, the Otomo leaders travelled to
Osaka itself, seeking to persuade Hideyoshi to help. Hideyoshi was impressed with this embassy, and presumably agreed to help. Yoshihisa, seeing that Hideyoshi was prepared to invade, sent a message to Hideyoshi, claiming that he had attacked the other clans in self-defence, but Hideyoshi refused and leads his forces to Kyushu.
Kyushu campaign
In 1586,
Kyushu Campaign by
Toyotomi Hideyoshi begin.
The Ōtomo forces led by
Myorin
Myōrin (妙林) or Yoshioka Myorin-ni (吉岡妙林尼) was a late-Sengoku period female warlord onna-musha. She was the wife of Yoshioka Akioki a samurai warlord, and served Otomo clan in Bungo. She was the heroic woman who defended the Otomo c ...
, were supported by armies under
Sengoku Hidehisa,
Chōsokabe Motochika and
Sogō Masayasu, delayed Shimazu forces and weakened them in preparation for the arrival of Hideyoshi's armies.
Hideyoshi mobilised a force of 200,000 soldiers and 20,000 pack animals, transporting supplies for an even larger army of 300,000 men.
Toyotomi Hidenaga led the vanguard of 25,000 men and 3,000 horses. By April 1587 Hideyoshi had reached the straits at
Shimonoseki, moving through
Chikuzen and
Chikugo to attack Yoshihisa in
Higo. At this point
Mōri forces under
Kobayakawa Takakage joined Hidenaga's force, as the Mōri had been recently suppressed. Hidenaga then drove back the Shimazu forces in
Hyūga and
Bungo. The Shimazu fought well, but had few firearms and lacked discipline and training; they were steadily overwhelmed through the superior quality ''and'' quantity. By the end of May 1587, the various island daimyos had turned to Hideyoshi's side. In June, Shimazu was routed in
Satsuma itself, and Hideyoshi laid
Siege of Kagoshima castle. Yoshihisa sued for peace, and a truce was agreed. Hideyoshi offered generous terms for a lasting peace to son of Yoshihiro's and Iehisa's; though Yoshihisa initially refused the offer, Hideyoshi tried again and was this time successful.
After surrender
Most of the domains Yoshihisa had conquered were given by Hideyoshi to three of his senior generals - Kato, Konishi, and Kuroda - and the
Shimazu clan managed to retain only Satsuma Province and
Ōsumi Province, as well as half of Hyuga. The Mori were given fiefs in northern Kyushu, and Kobayakawa gained Chikuzen. Yoshihisa shaved his head to surrender, showing that he would become a
Buddhist monk if his life was spared. His name as a monk was ''Ryūhaku'' (龍伯) but it is unclear whether he retired in order to allow Yoshihiro to rule. As a retainer under Hideyoshi, his younger brother Yoshihiro controlled troops, but it is believed that Yoshihisa still managed day-to-day affairs in the domain. Yoshihisa did not have a son to succeed him, so he had Yoshihiro's son,
Shimazu Tadatsune
was a ''tozama daimyō'' of Satsuma, the first to hold it as a formal fief (''han'') under the Tokugawa shogunate, and the first Japanese to rule over the Ryūkyū Kingdom. As lord of Satsuma, he was among the most powerful lords in Japan at t ...
marry the third daughter ''Kameju'' (亀寿) and adopted him as the successor.
Yoshihisa knowledge of culture is not known, but after Hideyoshi granted
Hosokawa Fujitaka a retirement estate at
Osumi Province in 1595, Fujitaka taught him classic literatures, and
Kampaku Konoe Wakihisa, who was skilled in
waka and
renga, is believed to have frequented Yoshihisa's house. He initially looked favourably on Christian missionaries such as Luís de Almeida.
After his domain was split up by Hideyoshi,
Tokugawa Ieyasu invited Yoshihisa to
Fushimi Castle
, also known as or Fushimi-Momoyama Castle, is a Japanese castle located in Fushimi Ward, Kyoto.
Fushimi Castle was constructed from 1592 to 1594 by Toyotomi Hideyoshi at the end of the Sengoku period as his retirement residence. Fushimi Castle ...
. Ieyasu and his retainers repeatedly asked Yoshihisa how he managed to unify Kyushu; eventually, Yoshihisa relented, saying that he won his victories through his retainers - "
ecausemy three younger brothers, led by Yoshihiro, as well as retainers like
Uwai Satokane and
Yamada Arinobu, fought so well united under the same goal, I never had a chance to show my bravery in a battle. I only had to wait in the castle for news brought by messengers of their victories". After Yoshihisa left, Ieyasu told his retainers that - "
oshihisa had, asa general let retainers under him work to the best of their abilities. This is how a great general should be".
Death

On January 21 in 1611, he died of illness in
Kokubu Castle
also called ''Maizuru Castle'' is the remains of a castle structure in Kirishima, Kagoshima, Kirishima, Kagoshima Prefecture, Japan. The site is called a ''Kokubu castle'', but it is a fortified residence rather than a castle.
In 1604, Shimazu Y ...
.
Posthumously, he was named 貫明存忠庵主. He was buried at what had once been the site of
Fukushoji in
Kagoshima - his tombstone remains, along with those of the other leaders of his clan. There are also monuments built in his memory at Kokubun, ''Ima Kumano Kannonji'' (今熊野観音寺) in
Kyoto, and
Koyasan. Though there is no portrait of Yoshihisa remaining, there is a bronze figure of Yoshihisa at the
Taiheiji, depicting his surrender to Hideyoshi. The statue was produced after he died.
Notable retainers
Shimazu clan
*
Shimazu Yoshihiro
*
Shimazu Toshihisa
*
Shimazu Iehisa
*
Shimazu Tadanaga
Other
*
Niiro Tadamoto
was a retainer of Satsuma ''daimyō'' Shimazu Yoshihisa. He is also known as Jiroshirō. He served under Shimazu Takahisa and then under Yoshihisa. Tadamoto was a skilled samurai called ''Oni Musashi''.
Tadamoto had an active role at the Batt ...
*
Yamada Arinobu
*
Uwai Satokane
*
Ei Hisatora
*
Ijūin Tadamune
*
Hongo Tokihisa
was a Japanese samurai of the Azuchi-Momoyama period, who served the Shimazu clan.
In 1573, Tokihisa defeated an attack led by the Kimotsuki clan.
In 1578 he would suppress a rebel coalition of former Itō retainers.
After Toyotomi Hi ...
*
Hongo Tadatora
was Japanese samurai of the Azuchi–Momoyama period, who served the Shimazu clan. He was the son of Hongo Tokihisa, another Shimazu vassal.
In 1573, Tadatora and his father held Kumamoto Castle against an attack by the Kimotsuki
is a t ...
References
{{DEFAULTSORT:Shimazu, Yoshihisa
1533 births
1611 deaths
Daimyo
Shimazu clan
People from Kagoshima Prefecture