《资治通鉴·唐纪·唐纪二十二》
家奴砍下他的脑袋向唐朝投降，他的脑袋被挂在四方馆门前示众。
奴斩其首以降，枭之四方馆门。
His family servants cut off his head to surrender to the Tang, and his head was publicly displayed at the gate of Sifang Museum. 
<s>[INST] Convert the following English text into Classical Chinese: His family servants cut off his head to surrender to the Tang, and his head was publicly displayed at the gate of Sifang Museum.  [/INST] 奴斩其首以降，枭之四方馆门。</s>
Convert the following English text into Classical Chinese: His family servants cut off his head to surrender to the Tang, and his head was publicly displayed at the gate of Sifang Museum.
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奴斩其首以降，枭之四方馆门。
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