生平

陸胤早年入仕東吳任御史、尚書選曹郎，太子孫和聽聞他的名聲，因而特別禮待他。當時正值二宮之爭，全寄、楊竺等人依附並支持孫權寵愛的魯王孫霸為太子。一天孫權單獨見楊竺，討論孫霸的才幹，楊竺則對孫霸大為讚賞，並勸孫權改立孫霸為太子，孫權當時答應了。一直躲在床下的給使聽到孫權和楊竺的談話後告訴孫和，孫和害怕被廢黜，於是微服去見將出發到武昌的陸胤，並在他的車子上秘密商議對策，最終要陸胤代為要求丞相陸遜上表諫止。陸遜於是上書懇切地勸諫，孫權懷疑是楊竺將當日談話內容洩漏出去，才令陸遜上表支持孫和。楊竺不服，孫權於是要楊竺找出洩漏機密的人。楊竺則因只有陸胤一人在期間曾到武昌，認定是陸胤所作，而問陸遜時陸遜亦說是由陸胤告知。但其後問陸胤時，陸胤為了保護孫和，說是楊竺說的，因而入獄；雖然受到嚴刑拷問，但都沒有供出孫和。

陸胤事後獲釋，並出任衡陽督軍都尉。赤烏十一年（248年），交趾郡和九真郡人民響應趙嫗叛亂吳書中並沒提及趙嫗本人的名字，僅稱「交趾九真夷賊攻沒城邑，交部騷動。」，並攻打當地城邑，令交州大亂。陸胤於是改任交州刺史、安南校尉。陸胤到後，以恩德信義作號召，招納投降士民，成功令高涼渠帥黃吳等三千餘家支黨出降。後又率軍南行，繼續勸降，又留下錢財招降，最終令到餘下的叛軍都誠心歸降，交州再次安定下來。陸胤因功加安南將軍。及後陸胤又擊破蒼梧郡和建陵郡叛民，前後收集了八千多人充實軍隊。

永安元年（258年），陸胤自交州召還，改任西陵督，封都亭侯，後轉任虎林督，其後事跡不詳。唯一能確定的是其子陸式於天冊元年（275年）隨兄長陸凱（於建衡元年（269年）逝世）子陸禕俱徙建安前逝世。

子

• 陸式，東吳柴桑督，揚武將軍。後與從兄、陸凱子陸禕俱徙建安。天紀二年（278年）被召還建業，復任軍職。

評論與著作

• 陳壽：胤身絜事濟，著稱南土，可謂良牧矣。

• 華覈：胤天姿聰明，才通行絜。

《新唐書·藝文志二·雜傳記類》載其著有《志廣州先賢傳》七卷，《太平御覽》、《藝文類聚》等有引之。

Family background

Lu Yin was from Wu County, Wu Commandery, which is present-day Suzhou, Jiangsu. The Lu clan, which he was from, was one of the four most influential clans in Wu Commandery and also in the Jiangdong (or Wu) region at the time. He was the younger brother of Lu Kai and a relative of Lu Xun, who served as the eighth and third Imperial Chancellors of Eastern Wu respectively.

Role in the Sun He–Sun Ba succession struggle

Lu Yin started his career as an Imperial Clerk (御史) and Gentleman in the Selection Bureau of the Imperial Secretariat (尚書選曹郎) during the reign of Sun Quan, the founding emperor of Eastern Wu. Sun He, Sun Quan's third son and heir apparent, heard of Lu Yin's talent and treated him exceptionally well.

Around the 240s, there was a power struggle between Sun He, the Crown Prince, and his fourth brother Sun Ba, the Prince of Lu, over the succession to their father's throne. While Sun He became worried that his father would depose and replace him, Sun Ba became increasingly set on seizing the position of Crown Prince from Sun He. Each of the two princes had a faction supporting him. During this time, Sun Quan considered replacing Sun He with Sun Ba so he privately asked Yang Zhu, one of Sun Ba's supporters, about his thoughts on Sun Ba. Yang Zhu sang praises of Sun Ba and nearly convinced Sun Quan to replace Sun He with Sun Ba. A servant who eavesdropped on the private conversation between Sun Quan and Yang Zhu secretly reported what he heard to Sun He.

At the time, Lu Yin had been assigned to a position in Wuchang (武昌; present-day Ezhou, Hubei) and was about to leave the imperial capital, Jianye (present-day Nanjing, Jiangsu). When he went to bid Sun He farewell, Sun He publicly declined to meet him. However, Sun He later disguised himself and sneaked into Lu Yin's carriage to discuss with him how to safeguard his position as Crown Prince. They decided to seek help from Lu Yin's relative Lu Xun, a senior general who later became the third Imperial Chancellor of Wu. Lu Xun then wrote a memorial to Sun Quan to dissuade him from replacing Sun He with Sun Ba. Sun Quan was surprised to receive Lu Xun's memorial and he thought that Yang Zhu revealed the details of their private conversation. When Yang Zhu insisted that he did not, Sun Quan ordered him to find out how Lu Xun knew about it. Yang Zhu then deduced that it must have been Lu Yin who told Lu Xun in Wuchang. Sun Quan then sent a messenger to check with Lu Xun, who confirmed that it was Lu Yin who told him.

Sun Quan then ordered Lu Yin to be arrested and interrogated. While being tortured during interrogation, Lu Yin refused to reveal that it was actually the servant who told them, so as to protect Sun He and prevent him from being implicated. Instead, he lied that it was Yang Zhu who told them about it. Sun Quan then ordered Yang Zhu to be arrested and interrogated as well. Yang Zhu, unable to withstand the torture, falsely admitted that he told Lu Yin. As Sun Quan had already suspected that it was Yang Zhu who leaked the secret, he became even more convinced after hearing Yang Zhu's false confession, so he executed Yang Zhu and released Lu Yin.

Pacifying rebellions in Jiao Province

Lu Yin was later commissioned as a Commandant Who Supervises the Army in Hengyang Commandery (衡陽郡; around present-day Xiangtan, Hunan).

In 248, rebel forces in the southern commanderies of Jiaozhi (around present-day Hanoi, Vietnam) and Jiuzhen (九真; around present-day Thanh Hóa, Vietnam) attacked and seized control of cities from their administrators appointed by the Wu government. This triggered a wave of unrest throughout Jiao Province, which Jiaozhi and Jiuzhen commanderies were part of. In response, Sun Quan appointed Lu Yin as the Inspector (刺史) of Jiao Province and promoted him to Colonel Who Pacifies the South (安南校尉) to deal with the unrest.

After assuming office in Jiao Province, Lu Yin managed to placate the locals through acts of kindness and goodwill, and succeeded in gaining their trust and respect. Huang Wu, a local chieftain from Gaoliang Commandery (高涼郡; around present-day Yangjiang, Guangdong), led over 3,000 households to surrender to Lu Yin. Lu Yin then led Wu forces southward to pacify the revolts. In order to convince the local tribes of his sincerity towards making peace with them, he distributed large sums of money to the locals. Won over by Lu Yin's generosity, more than 100 local chieftains led over 50,000 households out of the hills to surrender to him and pledge allegiance to Wu. With the surrender of these local tribes, Lu Yin succeeded in restoring peace and stability in Jiao Province.

The Wu government promoted Lu Yin to General Who Pacifies the South as a reward for his achievements. Lu Yin later led Wu forces to attack rebels in Cangwu Commandery (蒼梧郡; around present-day Wuzhou, Guangxi) and defeated them. Throughout the campaign against the rebels, Lu Yin recruited over 8,000 troops to serve in his army.

In Vietnamese history, Lady Triệu was the one who led the people of Jiuzhen (Cửu Chân) Commandery to rebel against Wu rule. She managed to resist the Wu forces for about five or six months before she lost and decided to take her own life.

Later life

In 258, during the reign of Sun Xiu, Lu Kang was appointed as the Area Commander of Xiling (西陵; around present-day Yichang, Hubei) near the western frontier of Wu. He was also awarded the peerage of a Marquis of a Chief Village (都亭侯). However, he was soon reassigned from the border to serve as a commander of the Left Hulin (左虎林) corps of the Wu army.

Around this time, Hua He, an assistant official in the Palace Secretariat, wrote a memorial to the emperor to praise Lu Yin for his achievements during his decade-long tenure as the governor of Jiao Province and recommend him as a talent to serve in higher positions in the Wu central government.

Family

Lu Yin died in an unknown year. His son, Lu Shi (陸式), inherited his peerage as a Marquis of a Chief Village. Like his father, Lu Shi served as a military officer in Wu and held the positions of Area Commander of Chaisang (柴桑; around present-day Jiujiang, Jiangxi) and General Who Spreads Martial Might. In 275, the last Wu emperor Sun Hao forced Lu Shi and his relative Lu Yi (陸禕) to relocate from Jianye (present-day Nanjing, Jiangsu) to the remote Jian'an Commandery (建安郡; covering parts of present-day Fujian) in the south. Three years later, Sun Hao recalled Lu Shi back to Jianye and restored him to his previous position and peerage.