▁by ▁Ga oz ong . ▁Their ▁status ▁as ▁" Se ven ▁Great ▁s urn ames " ▁became ▁known ▁during ▁Ga oz ong ' s ▁rule . ▁ ▁The ▁surname ▁is ▁one ▁of ▁the ▁five ▁s urn ames , ▁now ▁the ▁most ▁common ▁s urn ames ▁in ▁Korea , ▁closely ▁associated ▁with ▁the ▁six ▁villages ▁that ▁formed ▁the ▁earliest ▁state ▁of ▁S illa . ▁ ▁Many ▁non - H an ▁Chinese ▁groups ▁adopted ▁the ▁surname ▁C ui . ▁ ▁During ▁the ▁Q ing ▁D ynast y , ▁the ▁Man ch u ▁cl ans ▁Cu igi ya ▁H ala ▁( sin ic ized ▁as ▁ <0xE5> <0xB4> <0x94> <0xE4> <0xBD> <0xB3> 氏 ) ▁and ▁Cu im ulu ▁H ala ▁( <0xE5> <0xB4> <0x94> <0xE7> <0xA9> <0x86> <0xE9> <0xB2> <0x81> 氏 ) ▁simplified ▁their ▁names ▁to ▁C ui . ▁The ▁Man ch u ▁Cu igi ya ▁ <0xE5> <0xB4> <0x94> <0xE4> <0xBD> <0xB3> 氏 ▁cl an ▁claimed ▁that ▁a ▁Han ▁Chinese ▁founded ▁their ▁cl an . ▁A ▁Mong ol ▁cl an ▁Cu ij uk ▁H ala ▁( <0xE5> <0xB4> <0x94> <0xE7> <0x8F> <0xA0> 克 氏 ) ▁also ▁adopted ▁this ▁surname ▁during ▁the ▁Q ing ▁D ynast y . ▁ ▁The ▁surname ▁may ▁also ▁be ▁found ▁amongst ▁the ▁T uj ia ▁( 土 家 ) ▁people ▁in ▁Hun an , ▁the ▁Y i ▁( <0xE5> <0xBD> <0x9D> ) ▁people ▁in ▁Y unn an , ▁as ▁well ▁as ▁the ▁Mong ols ▁and ▁H ui ▁( 回 ) ▁people . ▁ ▁List ▁of ▁notable ▁people ▁ ▁Historical ▁ ▁C