《宋史·本纪·卷二十一》
十二日，西蕃王子益麻党征投降，徽宗在紫哀殿接见了他。
丁酉，西蕃王子益麻党征降，见于紫宸殿。
On the 12th, the prince of Western Tibet, Yima Dangzheng, surrendered. Emperor Huizong received him in the Palace of Heavenly Sorrow.
<s>[INST] Kindly elucidate the central themes in this passage in English: 丁酉，西蕃王子益麻党征降，见于紫宸殿。 [/INST] On the 12th, the prince of Western Tibet, Yima Dangzheng, surrendered. Emperor Huizong received him in the Palace of Heavenly Sorrow.</s>
Kindly elucidate the central themes in this passage in English: 丁酉，西蕃王子益麻党征降，见于紫宸殿。
user
On the 12th, the prince of Western Tibet, Yima Dangzheng, surrendered. Emperor Huizong received him in the Palace of Heavenly Sorrow.
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