《北史·列传·卷五》
元冲没有儿子，封国废除。
无子，国绝。
Because Yuan Chong had no son, the fief was abolished.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 无子，国绝。 [/INST] Because Yuan Chong had no son, the fief was abolished.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 无子，国绝。
user
Because Yuan Chong had no son, the fief was abolished.
assistant