was a daimyō warlord in the Izumo Province, Chūgoku region of western Japan. He was the second son of Amago Masahisa. Initially named Akihisa (詮久), he changed his name to Haruhisa in 1541 after Ashikaga Yoshiharu offered to let him use a kanji character from his name.
Biography
After his father Amago Masahisa died early in battle, Haruhisa became the head of Amago clan in 1537 after his grandfather stepped down. He launched a series of invasions to expand his domain, going as far as Harima. His childhood name was
In 1540, the Siege of Yoshida-Kōriyama Castle against Mōri Motonari ended in a humiliating defeat, and many of his retainers defected believing that Haruhisa's days were numbered. His grandfather Amago Tsunehisa died the next year and Ōuchi Yoshitaka launched a counterattack to finish the Amago clan.
Amago Haruhisa successfully defended Toda castle in the 1542–43 Siege of Toda Castle.