燕国 / Yan State
燕国 / Yan State appears in 《资治通鉴·周纪》06丨魏文侯选谁当宰相呢（2） through a brief succession notice: 燕闵公 dies and 燕僖公 succeeds him. The episode also notes that Yan’s capital was Ji, associated with present-day Beijing.
The page is currently source-scoped. Its role is to anchor the annalistic chronology branch of the episode rather than to provide a complete Yan history.