《北史·列传·卷六十一》
祖达奚俟，魏时任定州刺史。
祖俟，魏定州刺史。
His grandfather, Da Xia Qi, was the governor of Dingzhou during the Wei Dynasty.
<s>[INST] Kindly elucidate the central themes in this passage in English: 祖俟，魏定州刺史。 [/INST] His grandfather, Da Xia Qi, was the governor of Dingzhou during the Wei Dynasty.</s>
Kindly elucidate the central themes in this passage in English: 祖俟，魏定州刺史。
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His grandfather, Da Xia Qi, was the governor of Dingzhou during the Wei Dynasty.
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