《明史·本纪·卷九》
九年十一月，立为皇太孙，当时他刚成年加冠。
九年十一月，立为皇太孙，始冠。
In November of the ninth year, he was named Crown Prince and had just become an adult.
<s>[INST] Convert the following English text into Classical Chinese: In November of the ninth year, he was named Crown Prince and had just become an adult. [/INST] 九年十一月，立为皇太孙，始冠。</s>
Convert the following English text into Classical Chinese: In November of the ninth year, he was named Crown Prince and had just become an adult.
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九年十一月，立为皇太孙，始冠。
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