《陈书·列传·卷二十一》
他的九世祖名信，是吴国太常卿，在江左有名望。
九世祖信，吴太常卿，有名江左。
His ninth-generation ancestor was named Xin and was a high-ranking official in charge of ceremonies in the State of Wu, who was famous in Jiang Zuo.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 九世祖信，吴太常卿，有名江左。 [/INST] His ninth-generation ancestor was named Xin and was a high-ranking official in charge of ceremonies in the State of Wu, who was famous in Jiang Zuo.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 九世祖信，吴太常卿，有名江左。
user
His ninth-generation ancestor was named Xin and was a high-ranking official in charge of ceremonies in the State of Wu, who was famous in Jiang Zuo.
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