《辽史·列传·卷二十》
世宗即位，因为是舅父，出其宫籍，补为国舅别部敞史。
世宗即位，以舅氏故，出其籍，补国舅别部敞史。
When Shizong ascended to the throne, because he was the emperor's maternal uncle, he was released from his palace and appointed as the chancellor of the Ministry of Foreign Affairs.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 世宗即位，以舅氏故，出其籍，补国舅别部敞史。 [/INST] When Shizong ascended to the throne, because he was the emperor's maternal uncle, he was released from his palace and appointed as the chancellor of the Ministry of Foreign Affairs.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 世宗即位，以舅氏故，出其籍，补国舅别部敞史。
user
When Shizong ascended to the throne, because he was the emperor's maternal uncle, he was released from his palace and appointed as the chancellor of the Ministry of Foreign Affairs.
assistant