《旧唐书·本纪·卷五》
二年春正月，封诸王正妻之子都为郡王。
二年春正月，封诸王嫡子皆为郡王。
In the first month of spring in the second year, the sons of the legitimate wives of all the princes were named princes.
<s>[INST] Transpose the following Modern Chinese text into Classical Chinese: 二年春正月，封诸王正妻之子都为郡王。 [/INST] 二年春正月，封诸王嫡子皆为郡王。</s>
Transpose the following Modern Chinese text into Classical Chinese: 二年春正月，封诸王正妻之子都为郡王。
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二年春正月，封诸王嫡子皆为郡王。
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