Shang Yang
In 341 BC, Qin attacked the state of Wei. Yang personally led the Qin army to defeat Wei, and eventually Wei ceded the land west of the Yellow River to Qin. For his role in the war, Yang received 15 cities in Shang as his personal fief and became known as the lord of Shang (Shang Jun) or Shang Yang. According to the "Records of the Grand Historian", with his personal connections while serving in the court of Wei, Shang Yang invited Gongzi Ang, the Wei general, to negotiate a peace treaty. As soon as Ang arrived, he was taken prisoner, and the Qin army attacked, successfully defeating their opponents.