"Seeing the son kill his father before, seeing the brother kill his brother later" refers to what happened in which dynasty?

In the Northern and Southern Dynasties, Liu Song ate people. The descendants of the lean Emperor Wu of Song, except those who fled to the north to surrender to Wei, were all extinct.

Liu Yifu, the eldest son of Emperor Wu of Song, and Lu Ling, the second son, were killed by Xu Xianzhi, the powerful minister, and the third son succeeded to the throne as Emperor Wen. Among Wendi's brothers, Liu Yikang is the oldest and most trusted. In the early years of Yuanjia, Liu Yikang's authority became more and more important, with Stuart, General and General in charge of state affairs. At this time, Emperor Wen was ill, and Liu Yikang was good at killing, abusing his personal interests, forming a clique, and secretly sent his cronies to Shangshu Yicao to consult the archives of brothers and sisters in the previous dynasty, which showed his disloyalty. Although Wendi was ill, he was aware of Liu Yikang's behavior, but he still forbeared. A few years later, Wendi suddenly took Liu Yikang's best friend away, deprived him of his position and made him a local official. A few years later, Yi Kang was demoted to Shu Ren on the grounds of alleged rebellion. In the 28th year of Yuanjia, Wei Bing invaded the south, and Wendy was worried about the change, so she wrote to kill Yikang, and all her descendants were killed by Shao.

A generation of lean men was always impregnable in the Liu and Song Dynasties, and the imperial clan was assigned to lead a large number of troops to sit in the town. However, once foreign governors support themselves, it will inevitably threaten the central government. Worried about the powerful imperial clan and civil strife, Emperor Wen appointed Shao Zhen to guard the capital, and the Prince's Mansion alone added 10,000 soldiers. But he never expected to lead soldiers into the palace to kill his father Shao. After Liu Shao killed his father, he became independent, unpopular and alienated from his relatives. Seeing the opportunity, Liu Jun, the third son of Wendi, led Jiangyu, Jingyu and Yongzheng to attack the capital, killed Liu Shao and his four sons, and killed his second brother Liu Zhuo and his three sons by the way. After the Liu Jun Uprising, Emperor Liu Wendi's fifth brother defected to the rebel army. As a result, all his twelve sons were killed by Liu Shao.

Liu Jun proclaimed himself Emperor Xiao Wudi. During his ten years in office, Liu Jun killed his fourth brother Liu Shuo, his sixth brother Liu Dan, his tenth brother Liu Hun, his fourteenth brother Liu Xiumao and his sixth uncle Liu Yixuan in the name of rebellion.

After his death, Liu 16-year-old son ascended the throne. At the beginning of his reign, he laid hands on his uncle Liu. He not only killed Liu and his son, but also cut off his uncle's limbs, cut open his stomach, gouged out his eyes, coated them with honey, and named them "Guimu Zongzi". So far, Liu Yu's seven sons, except one of Wendi, have not been affected. Liu's lewdness and ugliness are countless. He not only occupies the wives and daughters of people with other surnames, but also constantly creates incest farce. History book: Xiao Wu was "rude in the boudoir and fornicated with his adopted daughter." He also "secretly took his daughter into the palace and renamed her Yin's concubine."

Then, Liu waved the butcher knife at his brothers and sisters, and Liu Zishi was killed one after another. Liu especially hates his sixth uncle. He ordered people to carry him to the wooden trough, and told his uncle Liu Mi to take off his clothes and lie down in the trough to learn to eat pigs. He named Liu Mi the King of Pigs, Liu Yi the King of Donkeys, Liu Xiuren the Twelfth Uncle and Liu Xiuyou the King of Thieves. They were imprisoned in bamboo cages and tortured. On the eve of Liu's plan to kill all six uncles, the palace guards rebelled and killed Liu.

After Liu's death, he was made emperor.

After Ming ascended the throne, Liu Zifang, the three sons of Emperor Xiaowu Liu, joined forces to rebel. As a result, after the defeat, Xiao Wudi's sons were all killed. Soon, the twelve sons of Emperor Xiaowu were successively dismissed by Ming Di. After Liu Mi acceded to the throne, in addition to killing all the scholars of Xiao Wu, he also killed four of his only five younger brothers, including Liu Xiuren, who once saved his life and strongly supported him as emperor, and made great contributions to quelling Liu's rebellion.

It turned out that during the reign of Liu, he was named "King of Pigs" and was bullied. Once, Liu tied his hands and feet, dressed him with a stick, and asked him to carry him to the backyard to kill him. He said with a smile, "I'm going to kill a pig today." Liu Xiuren immediately smiled strangely. "Today is not the day to kill pigs." Liu Yezi asked Liu Xiuren why, and Liu Xiuren replied, "The queen is going to give birth to a prince soon, and it will be a good day to kill a pig to get the liver." So Liu Wei saved his life for the time being. But even so, Liu Xiuren could not escape the fate of being slaughtered after he settled in Liu Mi.

After the death of Ming Di Liu Mi, his son Liu Yu succeeded to the throne. Immediately after Liu Yu ascended the throne, he met his uncle Liu Xiu Fan Bing, who was the only person left in the world. Liu Xiu Fan Bing was defeated and died. At this point, Liu Jing, the grandson of Wendi, was still alive and gentle, but Liu Yu was still worried and killed Liu Yu immediately.

At this point, the descendants of emperor Wu of song, there is no object worth killing each other. ......

At this point, Xiao Daocheng, the powerful minister, killed Liu Yu first, then the puppet emperor Liu Shu, and then ordered the vassals of Liu Song to die quietly. This is land, and the descendants of Liu and Song Dynasties don't have to kill each other, but others do it for them, and they all come to a bad end.