Akizuki Tanekatsu

Akizuki Tanekatsu, born Harada Tanekatsu, was a warrior of Chikuzen Province and the founder of the Akizuki clan. He lived at the castle of Harada Tanenao, usually described as his elder brother. His family served the Taira, and he fought for them when the Taira court fled to Kyushu in 1183.

After the Taira destruction at Dannoura in 1185 and Tanenao's capture, he went into hiding. Around 1203 the Kamakura shogunate granted him the Akizuki manor; he settled there, took the name Akizuki and built Mount Kosho castle, founding the line of Akizuki lords.