民国最耀眼政治犯陈独秀，狱中为儿陈延年陈乔年报仇
Chen Duxiu, the most dazzling political prisoner of the Republic of China, avenged his son Chen Yannian and Chen Qiaonian in prison
西安事变中，张学良通电全国提出八项主张，其中第四条明确要求“释放全国一切政治犯”。此时，作为五四运动的总司令、张学良青年时期的偶像和叔叔、中共创始人（中共第一届至第五届总书记）陈独秀，因“危害民国罪”被囚于南京老虎桥监狱，正是民国最耀眼的政治犯，身居狱中的陈独秀却让义侄张学良为自己报了仇雪了恨。
During the Xi'an Incident, Zhang Xueliang telegraphed the whole country and put forward eight propositions, the fourth of which clearly called for "the release of all political prisoners in the country." At that time, Chen Duxiu, the commander-in-chief of the May Fourth Movement, Zhang Xueliang's idol and uncle in his youth, and the founder of the Communist Party of China (the first to fifth general secretaries of the Communist Party of China), was imprisoned in Nanjing Tiger Bridge Prison for "crimes against the Republic of China". Zhang Xueliang avenged Chen Duxiu, who was the most dazzling political prisoner of the Republic of China.
西安事变中，蒋介石逃亡中险些摔死，中宣委主任邵元冲等大批随从被枪杀，包括蒋介石亲属蒋孝先（侍卫长）、蒋堃（宪兵团长）、蒋瑞昌（少校侍卫官）等。陈独秀闻听后特意喝酒祭奠跟随自己为建党牺牲的烈士，包括儿子陈延年、陈乔年。陈独秀说：“大革命以来为共产主义牺牲的烈士，你们的深仇有人报了！”并含泪酹酒于地，据说当年传达处决陈延年、陈乔年指令的正是蒋介石亲信蒋孝先等人。西安事变后第八个月，民国最耀眼的政治犯陈独秀终于出狱了，他说：“我的价值不在牢外，而在千万青年心中”，这一表述被视为他在五四运动时期对义侄张学良等大批青年的思想影响，万万想不到，身居狱中的陈独秀却为儿子陈延年、陈乔年等烈士们报了仇，不仅让张学良枪杀了蒋孝先、蒋堃、蒋瑞昌等蒋家子弟和大批随从，同时褪了蒋介石的神光，最重要的是给中共争取了九年的休养和壮大时间，导致蒋家王朝最终亡命天涯。
During the Xi'an Incident, Chiang Kai-shek almost fell to his death while fleeing, and a large number of his entourage, including Chiang Kai-shek's relatives Jiang Xiaoxian (chief of the guard), Jiang Kun (head of the gendarmerie), and Jiang Ruichang (major guard officer) were shot dead. Upon learning of their deaths, Chen Duxiu raised a toast in his cell: “Comrades sacrificed for communism since the Great Revolution, your vengeance is served!” Historical records indicate Jiang Xiaoxian had transmitted the execution orders for Chen’s sons. Eight months after the Xi'an Incident, Chen Duxiu, the most dazzling political prisoner of the Republic of China, was finally released from prison. Chen later reflected: “My value lies not beyond prison walls, but in the hearts of millions of youth”—a nod to his ideological influence on Zhang Xueliang, whom he mentored in the 1920s. The Xi’an Incident not only eliminated Chen’s sons’ killers but also shattered Chiang’s aura, granting the CPC nine critical years to regroup before the KMT’s eventual collapse.
张学良晚年在美国，自曝“我就是共党”，据陈独秀与高君曼所生儿子陈光美之孙陈恩田所述：青年张学良受陈独秀思想影响很大，并于1926年经中共北方区委组织部部长陈乔年推荐，加入中共成为地下党员。陈延年（小四子）、陈乔年（小五子）、张学良（小六子）童年就是好兄弟，这也是张学良力挽狂澜、舍身取义的根本原因。
Zhang Xueliang revealed in his later years: “I was Communist.” According to Chen Entian (great-grandson of Chen Guangmei—Chen Duxiu’s son with second wife Gao Junman)—The young Zhang Xueliang was greatly influenced by Chen Duxiu's thought, and joined the CPC in 1926 under Chen Qiaonian’s recommendation. The bond ran deeper: Chen Yannian, Chen Qiaonian, and Zhang (childhood nicknamed "Little Fourth," "Little Fifth," and "Little Sixth") had been sworn brothers since youth, cementing Zhang’s resolve to betray Chiang for Chen Duxiu’s cause.
