, also known as , was a Japanese daimyà  and prominent samurai lord of the Sengoku period. A former senior retainer of Ashikaga Yoshiaki, the fifteenth and final Ashikaga shà Âgun, Fujitaka later aligned with Oda Nobunaga. As a reward for his service to the Oda clan, he was granted the fief of Tango Province. He subsequently rose to prominence as one of the Oda's leading generals, playing a strategic role in Nobunaga's campaigns.
Hosokawa Fujitaka entered the service of Oda Nobunaga in 1568 after Nobunaga seized Kyoto. Later that year, he joined forces with Shibata Katsuie, Hachiya Yoritaka, Mori Yoshinari, and Sakai Masahisa to besiege Shà Âryà «ji Castle, where he defeated and killed its lord, Iwanari Tomomichi. The following year, when the Miyoshi clan attacked shà Âgun Ashikaga Yoshiaki at Honkokuji Castle, Fujitaka and Akechi Mitsuhide successfully defended the shà Âgun, repelling the assault.
From 1576 onward, Fujitaka played a key role in NobunagaâÂÂs campaigns, including the decade-long Ishiyama Hongan-ji War against the Ikkà Â-ikki, where he fought alongside Harada Naomasa, Akechi Mitsuhide, and Araki Murashige. In 1577, he distinguished himself during the Siege of Shigisan, helping crush the rebellion of Matsunaga Hisahide, a former Oda vassal. By 1579, under NobunagaâÂÂs orders, Fujitaka constructed Tanabe Castle as a strategic base for the conquest of Tango Province and later led Oda forces in capturing Yada Castle, prompting its lord, Isshiki Yoshimichi, to commit seppuku. Though his 1580 solo campaign in Tango initially faltered against Isshiki resistance, he secured the province with reinforcements from Akechi Mitsuhide.
Following NobunagaâÂÂs death in the 1582 Honnà Â-ji Incident, Fujitaka refused to support Akechi MitsuhideâÂÂdespite their familial ties through his son TadaokiâÂÂs marriage to MitsuhideâÂÂs daughter, Hosokawa GraciaâÂÂduring the Battle of Yamazaki. He subsequently took Buddhist vows, adopting the name Yà «sai, and relinquished his daimyà  title to Tadaoki. Nevertheless, he remained politically influential as a cultural advisor under Toyotomi Hideyoshi and Tokugawa Ieyasu. In 1585, he participated in the Siege of Negoroji, and Hideyoshi rewarded him in 1586 with a 3,000-koku retirement estate in Yamashiro Province. Fujitaka later served as HideyoshiâÂÂs envoy during the 1587 Kyushu Campaign, negotiating Shimazu YoshihisaâÂÂs surrender, and received an additional 3,000-koku stipend in à Âsumi Province in 1595.
After HideyoshiâÂÂs death in 1598, Fujitaka joined six generalsâÂÂFukushima Masanori, Katà  Yoshiaki, Ikeda Terumasa, Kuroda Nagamasa, Asano Yoshinaga, and Katà  KiyomasaâÂÂin plotting to assassinate Ishida Mitsunari, whom they accused of undervaluing their achievements during the Imjin War. The conspirators gathered at KiyomasaâÂÂs Osaka residence before marching to MitsunariâÂÂs home, but Mitsunari escaped after a servant of Toyotomi Hideyori, Jiemon Kuwajima, alerted him. He fled to Satake YoshinobuâÂÂs mansion and later barricaded himself in Fushimi Castle. Tokugawa Ieyasu, then overseeing Fushimi, mediated the crisis by negotiating MitsunariâÂÂs retirement and a review of the disputed Battle of Ulsan Castle reports, while arranging for his son Yà «ki Hideyasu to escort Mitsunari to Sawayama Castle. Historians regard this incident as a precursor to the 1600 Sekigahara conflict, reflecting deepening factional divides between Tokugawa loyalists and MitsunariâÂÂs anti-Tokugawa coalition.
During the 1600 Sekigahara Campaign, Fujitaka rejected MitsunariâÂÂs request to join the Western Army, citing MitsunariâÂÂs role in the deaths of Gracia and his granddaughter. As an Eastern Army general, he garrisoned Tanabe Castle with 500 men. The besieging Western Army, out of respect for Fujitaka, conducted a halfhearted siegeâÂÂfiring blank cannon rounds at the walls. He surrendered only after Emperor Go-Yà Âzei issued an imperial decree, though the resolution came 19 days before the Battle of Sekigahara, precluding his participation in the decisive clash.
Fujitaka died on October 6, 1610. His primary burial site is located in Kyoto, though a secondary memorial grave was later established in Kumamoto, where his grandson Hosokawa Tadatoshi ruled as daimyà Â.
Hosokawa Fujitaka was born into a samurai lineage. His grandfather, Hosokawa Motoari (1459âÂÂ1500), and father, Mitsubuchi Harukazu (1500âÂÂ1570), were both retainers of the Ashikaga shogunate. His mother, known by her Buddhist name Chisein, was a daughter of Rokkaku Yoshiharu. Fujitaka was adopted and raised by his uncle, Hosokawa Mototsune, head of the powerful Hosokawa clanâÂÂs Kokawa-ke branch. He married Numata Jakà  (1544âÂÂ1618), a poet and scholar, with whom he had eight children: four sonsâÂÂHosokawa Tadaoki (a noted daimyà Â), Hosokawa Okimoto (1566âÂÂ1619), Hosokawa Yukitaka (1571âÂÂ1607), and Hosokawa TakayukiâÂÂand four daughters (Itohime, Senhime, Kurihime, and Kagahime).