Katsutoshi was originally a follower of the [[ikko-ikki]] of [[Kaga province]]. He was attacked in Daishojiomote in [[1555]] by [[Asakura Soteki]] and fled, later taking up with the [[Uesugi clan]] of [[Echigo province]]. [[Uesugi Kagekatsu]] made him one of the defenders of [[Uozu castle]] in [[Etchu province|Etchû]] and when that place fell to a fierce assault by the [[Oda clan|Oda]], Katsutoshi committed suicide.
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Katsutoshi was originally a follower of the [[Kaga Ikki|Ikkô-ikki]] of [[Kaga province]]. He was attacked in Daishôjiomote in [[1555]] by [[Asakura Soteki]] and fled, later taking up with the [[Uesugi clan]] of [[Echigo province]]. [[Uesugi Kagekatsu]] made him one of the defenders of [[Uozu castle]] in [[Etchu province|Etchû]] and when that place fell to a fierce assault by the [[Oda clan|Oda]], Katsutoshi committed suicide.