was a samurai warrior and daimyo in 16th century Japan. He was a member of the Akizuki clan from Chikuzen Province, son of Akizuki Fumitane; his father was defeated by the à Âtomo clan. in 1564.
Following his father death by Otomo, Akizuki Tanezane sought assistance from the Mà Âri clan. Following the defeat of the Mà Âri in northern Kyushu at the hands of the à Âtomo, the Akizuki turned to the Shimazu clan for assistance. In 1567, Tanezane, has manage to recapture the castle of Mount Kosho from the à Âtomo clan and made his intention clear to fight against them. In response, Sorin sent Tachibana Dà Âsetsu, Usuki Akisumi, and Yoshihiro Akimasa with 20,000 soldiers on August 14 to punish Tanezane. The à Âtomo army first engaged the Akizuki clan forces at the Battle of Amamizu and Haseyama (also known as the Battle of Uryuno) on August 14, and on the 15th, and captured Ojo, a branch castle of Yasumimatsu Castle, causing the commander of the castle, Moromasa Sakata, to commit suicide.
Dà Âsetsu then stationed his army around Yasumomatsu castle, in preparation to capture Mount Kosho Castle. However, the castle was defended firmly and the siege dragged on. Subsequently, rumors circulated that a huge Mà Âri clan army in Chugoku region planned to invade Ojo, which prompted the à Âtomo forces to withdraw from the siege of Mount Kosho. Later, the à Âtomo army abandoned Yasumimatsu castle and began retreating in the morning of September 3. In response, Tanezane decided to sally out to give chase against the withdrawing à Âtomo army by dividing his 12,000 troops into four groups under the command of Kankage Intosho, Sanehisa Uchida Zenbei, over 3,000 cavalry, and Ayabe Suruga no Kami, over 5,000 cavalry. Dà Âsetsu already anticipated this movement by leading a rearguard with 3,000 soldiers with the assistance of his lieutenants, Bekki Shigetsura, Ono Shizuyuki, and Korenobu Yufu, with each of them leading 500 to 600 cavalry.
During this attack, at first the assault forces of Tanezane manage to inflict losses as they killed one of Dà Âsetsu's most trusted generals, Koretada Totoki. However, the rearguard detachment of Dà Âsetsu managed to reverse the situation and inflicted heavy losses upon Tanezane troops, forcing them to retreat. Later at night, Tanezane once again launched an assault this time with 4,000 soldiers in a night raid. The unexpected night attack by the Akizuki forces threw the à Âtomo army into chaos, and they suffered heavy losses with the total number of casualties being over 400, throwing the latter's force into panic. Dà Âsetsu managed to return order onto his troops and organize a retreat, however, Tanezane order his troops to pursue the fleeing Dà Âsetsu further, as they continued to pursue them as far as Chikugo Yamakuma Castle, forcing the à Âtomo army to suffer even more casualties. Many of Dà Âsetsu's clansmen were killed in this battle, such as Bekki Akitaka, Bekki Chikashige, Bekki Chikamune.
In 1569 DÃ Âsetsu captured the Yamakuma Castle from Tanezane during autumn.
In 1578 on December 11âÂÂ13, Tanezane worked together with Tsukushi Hirokado and Ryà «zà Âji Takanobu to invade Chikuzen, while Dà Âsetsu and his army worked hard to defend those territories.
In 1579 of mid January, Dà Âsetsu participated in the second à Âtomo invasion of Tsukushi province and Dazaifu town against the Akizuki clan, forcing Akizuki Tanezane to abandon his siege of Takatoriyama Castle. After that, Dà Âsetsu besieged the Iwaya castle for the second time. In March, Dà Âsetsu besieged the Iwaya castle for the third time subsequently with some clashes against the forces of Akizuki Tanezane. Following that, Dà Âsetsu engaged against Akizuki clan forces in the battle of Yatake, Chikuzen province. In July 27, Dà Âsetsu repulsed a joint attack from Tanezane and Harada Nobutane.
In 1580, from November 3 until December, DÃ Âsetsu fought against the forces of Akizuki Tanezane and Munakata Ujisada respectively.
In 1581, DÃ Âsetsu participated in the several engagements across against Akizuki Tanezane. First, DÃ Âsetsu fought against Tanezane and Ujisada in the battle of Koganebara, which was recorded in history as the largest military engagement ever happened in Kurate until at that time. In this battle, DÃ Âsetsu has inflicted a crushing defeat on his enemies, which left the territories under the control of Ujisada vulnerable to further incursions by DÃ Âsetsu's army. Later, DÃ Âsetsu fought against Tanezane again in Shimizuhara, and Takatori castle. In July 27, DÃ Âsetsu and Shigetane Shigetane fought against Tsukushi Hirokado and Akizuki Tanezane in the second battle of Dazaifu Kanzeon-ji. It is in this battle that, Takahashi Munetora, who will be known as Tachibana Muneshige, saw his first notable action.
On April 16, 1582, during the Battle of Iwato against the combined forces of 2,000 from the Akizuki, Harada, and Munakata clans, Dà Âsetsu led a 500-strong ambush force and surrounded his 1,000-strong main force. 300 of Muneshige's troops launched a surprise attack from the side with guns, while the remaining 200 soldiers were led by Komono Masutoki, who set up a false flag to make it look like reinforcements from the Otomo clan were coming, and finally managed to lift the siege. Muneshige then led 1,000 cavalry including Komono Masutoki, Korenobu Yufu, and Shigeyuki Ono, eliminating 300 of the Harada general's troops, Kasa Okinaga, who had built a fort at Iwatosho Kubeno, killing 150 of them, and pursuing them west to Sawara County, where he burned down Harada Chikahide's Sawara Castle. On November 6, Dà Âsetsu marched to Kama and Honami along with Muneshige and, and Shigetane. While on their way to the rescue of Kutami Akiyasu, the Tachibana and Takahashi forces received information that Akiyasu had safely retreated after fighting Akizuki Tanezane and Monjà «jo Munekage (the great-uncle of Munekage) in the Battle of Haratsuru, so they retreated. However, Tanezane forces turns out still pursuing them. Both fierce battles resulted in over 1,000 casualties, including over 300 casualties from Tachibana and Takahashi, and 760 for the Akizuki clan.
In 1585, Tanezane supported the Shimazu in an offensive against the à Âtomo at the Siege of Iwaya Castle. Later, Tanezane participated in anti-à Âtomo alliance invasion led by Ryà «zà Âji Ieharu. With a total army of 30,000, the alliance attacked Kurume. The à Âtomo forces led by Tachibana Dà Âsetsu and Takahashi Shigetane manage to score a series of victories over the numerically superior allied focers with a combination of brilliant maneuvers and tactics in three separate battles: in the end, the alliance siege against the town failed.
In 1586, he and Shimazu Yoshihisa marched to attack Otomo's Tachibana castle.
In 1587, he fought with Shimazu against Toyotomi Hideyoshi in Kyà «shà «, an island of Japan.
In 1596, Tanezane was succeeded by his son Tanenaga. After the Battle of Sekigahara, Tanenaga was transferred to Takanabe han (in Hyuga, 20,000 koku).