秦灵公 / Duke Ling of Qin
秦灵公 / Duke Ling of Qin appears in 《资治通鉴·周纪》08丨一代名将吴起惨死（3） as the father of 秦献公. The episode uses him only to explain why Qin Xian Gong has a plausible royal claim when shuzhang Gai brings him back from exile to replace 秦出公.
The page is intentionally source-scoped. It records the genealogical role needed for the Qin coup branch without expanding into a full Qin ruler biography.