Lifespan: 14xx to 6/29 of Kyōroku 3 (1530)
Title: Inspector of the Board of Censors
Clan: Tanba-Hatano → Yanagimoto
Father: Hatano Hidenaga
Siblings: Hatano Tanemichi, Kataharu, Kōzai Motomori
Yanagimoto Kataharu served as a bushō in Settsu Province based at Kannōsan Castle.
Kataharu was the son of Hatano Hidenaga. He received one of the characters in his name from Hosokawa Tadakata, a district military governor in Settsu who served Hosokawa Takakuni. Kataharu’s younger brother was named Kōzai Motomori.
In 1526, Motomori was killed by Takukuni owing to slander by Hosokawa Tadakata. Kataharu then joined his other older brother, Hatano Tanemichi, to coordinate a rebellion with the branch of the Hosokawa led by Hosokawa Harumoto and Miyoshi Motonaga from their base in Awa Province. Takakuni’s forces sheltered in Kannōsan Castle and then counterattacked. In 1527, Kataharu, together with Harumoto and Motonaga, defeated Takakuni at the Battle of Katsurakawara. Takakuni and Ashikaga Yoshiharu, the twelfth shōgun, were driven from the capital of Kyōto to Ōmi Province. Kataharu then met Ashikaga Yoshitsuna (Yoshiharu’s younger brother) in the city of Sakai and supported him as the Sakai kubō.
In 1528, Kataharu confronted Motonaga, deriding Harumoto and driving Motonaga to Awa. He then deployed to Yamato and Settsu provinces to attack supporters of Motonaga including Akazawa Yukiyoshi and Itami Motosuke. Seeking to rollback his losses, Takakuni appealed to the Kitabatake clan of Ise Province to march to Kyōto, and relying upon Uragami Muramune of Bizen Province, threatened Kinai. Kataharu focused on a reconciliation with Yoshiharu, but was refused by Yoshitsuna and Harumoto, and underwent the rite of tonsure.
In 1530, Kataharu deployed to Harima Province upon request of Bessho Nariharu to attack the Yorifuji clan, allies of the Uragami. However, in the midst of attacks on Yorifuji Castle (at the Battle of Yorifuji Castle), Kataharu died at the Gyokuren Temple in the Tōjō Valley. He may have been assassinated or killed himself.
On 1/22 of Kyōroku 5 (1532), perhaps owing to the young age of Kataharu’s son, Toramitsumaru, a member of the family named Yanagimoto Jinjirō served as Kataharu’s proxy but was killed at the Sanjō Castle in Kyōto by forces from Awa led by Miyoshi Motonaga. His retainer, Yamamura Masatsugu, submitted to Harumoto, and participated in the Kyōroku-Tenbun War and the Battle of Yamashina-Hongan Temple.