The three cities are Feiyi of the Jisun family, Xianyi of the Mengsun family, and Xianyi of the Shusun family.
Among them,
Xianyi - —Ninety miles northeast of present-day Ningyang County, Shandong Province (west of Dongzhuang Township), it was the strategic center of the northern part of the Lu State at that time
Yiyi—located in the area of ??Houting Village, Pengji Town, Dongping County today
Feiyi——southwest of Yutai, Shandong Province