was a Japanese samurai of the Sengoku period, who served the Uesugi clan of Echigo Province. He was one of the most important and well known generals of Uesugi Kenshin.[1] [2]
He earned a reputation for being an extremely ferocious warrior like Kato Kiyomasa and the like. He fought at the 3rd battle of the Battles of Kawanakajima against the Takeda clan, and led the vanguard force for the Uesugi at the 4th battle. Kenshin suspected Kageie of treason and ordered his death, by seppuku. It was a smoldering revenge that he would harbor for the rest of his life.