In the eleventh year of the Duke of Lu, in 712 BC, the people of lu, including the Duke of Yin himself, did not expect that this would be the last year of his regency. The State of Lu has gone through thirteen generations of kings from the beginning of the Bird of Lu to the Duke of LuYin.
Eleven years ago, in 723 BC, the twelfth monarch of the State of Lu, Duke Hui of Lu, died, and Changshu Zishi acted as an agent for political affairs and exercised the power of the monarch, that is, the Duke of Yin. At first, Huigong's concubine had no sons, and Huigong's concubine Shengzi gave birth to a son. When he grew up, he married a wife from the Song Kingdom for him. When Lady Song arrived in Luguo, Hui Gong saw that she was very beautiful and took her away himself. Later, Song Girl gave birth to her son Yun. Huigong promoted Song Nu to lady and made Gongzi Yun crown prince. When Huigong died, because of Yun's young age, the Lu people jointly demanded to be the act of state affairs, and did not say that he would be put on the throne.
In the winter of the eleventh year of The Duke of Luyin (712 BC), Gongzi Yi of the Duke of Lu said to the Duke of Yin, "If the people think you are good, please officially succeed to the throne as the monarch." I asked to kill Prince Yun for you, and then you appointed me as Minister of State. The Duke of Cain was very surprised by his words and said, "There is the will of the previous king. Because I was young, I acted as an agent of state affairs. Now that Yoon has grown up, I want to run the land of Suojo and retire there and return the state administration to Ziyun. Gongzi Yi did not expect such a reaction from the Lu Yin Guild, worried that the matter would be revealed, afraid that Zi Yun would kill him in turn after hearing about this matter, so he returned to frame Yin Gong in front of Zi Yun and said: "Yin Gong wants to officially take the throne and get rid of you, please make plans as soon as possible." I ask that you kill The Hidden Duke. ZiYun agreed. In November, the Hermit worshipped the god Zhong Wu, fasted in the garden, and lived in the clan's house. Gongzi Yi sent people to kill The Duke of Yin in the clan family, and li ziyun was made the monarch, that is, the Duke of Huan.
The regent of the State of Lu, Yin Gong, thus ended his reign. Cain, indicating that it is not in place, has the meaning of modesty and conservatism. Looking back at the eleventh year of Lu Yingong, he led the State of Lu to maintain neutrality and restraint in the course of the struggle for hegemony between the State of Zheng and the neighboring countries, so that the State of Lu would be free from the scourge of war.
The first is to stabilize the surrounding princely states by forming alliances. Alliances with the surrounding princely states were the diplomatic tactics he used the most, that is, in the first year of his reign, first gong and Yi's father allied with Yu Yu, then with the Song people, in the second year, Gong and Rong allied with Tang; in the sixth year, the guild Qi Hou, allied with Ai. In the eighth year, the Gong and Ju people allied with Fu Lai.
The second is to carefully choose to use force to attack, which is in stark contrast to the belligerent Lu Guofu Gongzi Yi. During his reign, he experienced only two wars. The first time was when Song Guo wanted to ask him to attack Zheng Guo, but he did not agree, but Gongzi Fei did not listen to him and took his troops with him.
In the autumn of the fourth year of the Duke of Yin, the princes reverted to Zheng. The Envoy of Song came to beg for a teacher and resigned. Father Yu please take the master to meet it, gongfu promise, and do it. The second time was to fight against the State of Qi and the State of Zheng against the State of Song.
After the Murder of Duke Lu Yin, the State of Lu entered the era of Duke Huan of Lu.