燕武成王 / King Wucheng of Yan
燕武成王 / King Wucheng of Yan enters the wiki through 《资治通鉴·周纪》85｜宣太后为何私通30年后暗杀了老情人？ as the successor installed after 公孙操 kills 燕惠王. The episode says his succession happens in the same political environment as the Qin-Wei-Chu attack on 燕国.
The page is source-scoped. Its current function is to mark that Yan’s collapse after the loss of Qi did not end with military defeat: the weakened royal authority of Yan Huiwang also becomes a court coup and succession event.