Established in [[1392]], the [[Amako clan|Amako]] were relatively minor until the advent of the [[Onin War|Ônin War]], which allowed Tsunehisa to assume control of [[Izumo province|Izumo]] from his headquarters at [[Gassan-Toda castle|Gassan-Toda Castle]]. | Established in [[1392]], the [[Amako clan|Amako]] were relatively minor until the advent of the [[Onin War|Ônin War]], which allowed Tsunehisa to assume control of [[Izumo province|Izumo]] from his headquarters at [[Gassan-Toda castle|Gassan-Toda Castle]]. |