《明史·列传·卷二百一十一》
万历元年冬天，琉球国世子尚永派使者到朝廷讣告其父的丧讯，并请求继承王位。
万历元年冬，其国世子尚永遣使告父丧，请袭爵。
In the winter of the first year of Wanli, the Crown Prince Shang Yong of Ryukyu sent envoys to the court to report the death of his father and requested to inherit the throne.