《宋史·本纪·卷二十》
二十七日，封儿子赵试为广国公。
丁亥，封子栻为黄国公。
On the 27th, his son Zhao Shi was enfeoffed as the Duke of Guangguo.
<s>[INST] Kindly elucidate the central themes in this passage in English: 丁亥，封子栻为黄国公。 [/INST] On the 27th, his son Zhao Shi was enfeoffed as the Duke of Guangguo.</s>
Kindly elucidate the central themes in this passage in English: 丁亥，封子栻为黄国公。
user
On the 27th, his son Zhao Shi was enfeoffed as the Duke of Guangguo.
assistant