燕王哙 / King Kuai of Yan
燕王哙 / King Kuai of Yan appears in 《资治通鉴·周纪》40丨5月出生的孩子惹谁啦？ as the successor after 燕易王 dies in the 321 BCE cluster under 周显王.
The source gives only the succession notice. Its immediate function is chronological: Yan’s ruler handoff sits beside the Zhou royal handoff while the episode’s narrative weight moves to 田婴 and 孟尝君 / 田文 in 齐国.