燕易王 / King Yi of Yan
燕易王 / King Yi of Yan appears in 《资治通鉴·周纪》29丨苏秦励志爽文：知识改变命运 as the successor after 燕文公 dies in the episode’s 333 BCE succession cluster.
The source does not develop his later rule. Here he anchors Yan’s place in the broader 周显王 annalistic frame before the episode shifts to 苏秦.
《资治通鉴·周纪》37丨苏秦：六国集团CEO的不堪情史 develops him through the Su Qin scandal. The episode says Yan Yi Wang learns that Su Qin had been involved with 燕文公’s wife. Su Qin then argues that he can serve 燕国 better by pretending to flee to 齐国, and Yan Yi Wang agrees. His role is therefore not only succession: he authorizes the covert Yan-facing use of Su Qin in Qi.
《资治通鉴·周纪》40丨5月出生的孩子惹谁啦？ gives the endpoint of that Yan reign notice. In 321 BCE, Yan Yi Wang dies and 燕王哙 succeeds him. The episode does not develop the transition; it uses the notice as one of the compact annalistic handoffs in 周显王’s final year.