Referenced entries:
燕 |
Yān | Yan, a vassal state of Zhou in present-day Hebei and Liaoning / north Hebei / the four Yan kingdoms of the Sixteen Kingdoms, namely: Former Yan 前燕 (337-370), Later Yan 后燕 (384-409), Southern Yan 南燕 (398-410), Northern Yan 北燕 (409-436) / surname Yan |