Yoshiaki was the eldest son of [[Satake Yoshiatsu]]. He invaded the lands of the [[Yuki clan|Yûki]] and defeated an allied Yûki-[[Ashina clan|Ashina]] army. Some time later, he married his daughter to the young [[Utsunomiya Hirotsuna]], who had been expelled from his domain in [[Shimotsuke province|Shimotsuke]] by the [[Nasu clan|Nasu family]]. Yoshiaki was able to reclaim Hirotsuna's domain and establish the latter there around [[1557]], in the process increasing the [[Satake clan|Satake's]] own domain. The next year he defeated [[Oda Ujiharu]]. Following a campaign against the [[Soma clan|Sôma]], Yoshiaki's health began to fail him and he handed over leadership of the family to his eldest son Yoshishige in [[1562]].
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Yoshiaki was the eldest son of [[Satake Yoshiatsu (1507-1545)|Satake Yoshiatsu]]. He invaded the lands of the [[Yuki clan|Yûki]] and defeated an allied Yûki-[[Ashina clan|Ashina]] army. Some time later, he married his daughter to the young [[Utsunomiya Hirotsuna]], who had been expelled from his domain in [[Shimotsuke province|Shimotsuke]] by the [[Nasu clan|Nasu family]]. Yoshiaki was able to reclaim Hirotsuna's domain and establish the latter there around [[1557]], in the process increasing the [[Satake clan|Satake's]] own domain. The next year he defeated [[Oda Ujiharu]]. Following a campaign against the [[Soma clan|Sôma]], Yoshiaki's health began to fail him and he handed over leadership of the family to his eldest son Yoshishige in [[1562]].