Satotoki was the son of [[Tanegashima Tadatoki]]. He controlled [[Tanegashima island]], just to the south of [[Kyushu]], and gave his loyalty to [[Shimazu Takahisa]], who he assisted on a number of occasions, including the [[Siege of Kajiki castle]].
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Satotoki was the son of [[Tanegashima Tadatoki]]. He controlled [[Tanegashima island]], just to the south of [[Kyushu]], and gave his loyalty to [[Shimazu Takahisa]], whom he assisted on a number of occasions, including the [[Siege of Kajiki castle]].