安国君柱 / 秦孝文王 / King Xiaowen of Qin
安国君柱 / 秦孝文王 / King Xiaowen of Qin appears in 《资治通鉴·周纪》89丨秦王竟被他怼“妈宝男”？ as the son 秦昭襄王 establishes as crown prince in 265 BCE after 秦悼太子 has died in 魏国.
The source uses him mainly to make the prior hostage death legible. His appointment suggests that Qin’s succession line is being reset while 范雎 is pushing Qin toward nearby attacks and while court power remains tangled with 宣太后, 魏冉, and the 秦国四贵权力结构.
《资治通鉴·周纪》91丨触龙如何敲开守寡赵太后的门（1） repeats the 265 BCE appointment after 宣太后’s death and 魏冉’s removal. It adds the biographical hint that Anguo Jun is already an adult with more than twenty sons, letting the host foreshadow 吕不韦 and the coming Qin succession chain.