高信 / Gao Xin (Warring States)
高信 / Gao Xin appears in 《资治通鉴·周纪》66丨中国历史上哪些帝王是被活活饿死的（2） during the active phase of 沙丘之变. After 赵章 kills 肥义 and attacks 赵惠文王赵何, Gao Xin is named as one of Zhao He’s immediate defenders.
His page remains narrow because the episode gives him little biography. His importance is operational: the crisis does not move straight from forged summons to Zhao Cheng and Li Dui’s arrival. Gao Xin and Zhao He first hold out long enough for support to return from Handan, which lets the court side survive the attempted coup.