《孔子家语·本姓解》
传到五代以后，分出同族，所以后来有一支以孔作为姓氏的族亲。
五世亲尽，别为公族，故后以孔为氏焉。
Handed down after the fifth generation, separated from the same clan, so later there was one clan using Kong as their surname.
<s>[INST] First, translate the Classical Chinese text into modern Chinese and then into English. Classical Chinese: 五世亲尽，别为公族，故后以孔为氏焉。 [/INST] 传到五代以后，分出同族，所以后来有一支以孔作为姓氏的族亲。 Then, Handed down after the fifth generation, separated from the same clan, so later there was one clan using Kong as their surname.</s>
First, translate the Classical Chinese text into modern Chinese and then into English. Classical Chinese: 五世亲尽，别为公族，故后以孔为氏焉。
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传到五代以后，分出同族，所以后来有一支以孔作为姓氏的族亲。 Then, Handed down after the fifth generation, separated from the same clan, so later there was one clan using Kong as their surname.
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