Suketane was a younger son of [[Nasu Masasuke]] and succeeded his murdered elder brother [[Nasu Takasuke|Takasuke]] (a paternal half-brother, specifically). He held [[Karasuyama castle]] in [[Shimotsuke province]] and starting in [[1560]] clashed with the allied forces of the [[Ashina clan|Ashina]], [[Satake clan|Satake]], and Utsunomiya.
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Suketane was a younger son of [[Nasu Masasuke]] and succeeded his murdered elder brother [[Nasu Takasuke|Takasuke]] (a paternal half-brother, specifically). He held [[Karasuyama castle]] in [[Shimotsuke province]] and starting in [[1560]] clashed with the allied forces of the [[Ashina clan|Ashina]], [[Satake clan|Satake]], and [[Utsunomiya clan|Utsunomiya]].