燕國
(?
前257年～
前255年)
燕孝王（？─前255年），在前257年燕武成王死後繼位，立姬喜為太子，在位三年而卒。
這期間，秦國滅東周，遷九鼎。這時期燕國可能築有長城，自造陽至襄平（今遼寧遼陽），並設置了上𠔌、漁陽、右北平、遼西、遼東五郡。近人王國良推論“燕築北長城，不在燕王喜時，就在孝王末年”。
During this period, the Eastern Zhou Qin destroyed, moved Jiuding. Yan State during this period may have built the Great Wall, made from sun to Xiangping (now Liaoning Liaoyang), and set up the Valley, Yu Yang, right Peking, western Liaoning, Liaodong Gogun. Neighbor Guoliang inference "Yan built Great Wall north, not Yan Wangxi time in the Xiao Wang Dynasty."