Who are the "four great gentlemen" in ancient times?

Qi State Mengchang Lord (Tian Wen), Chu State Chunshen Lord (Huang Xie), Zhao State Pingyuan Lord (Zhao Sheng), Wei Wei State Xinling Lord (Wuji)

Pingyuan Jun (? ~ 251 BC)

One of the four princes during the Warring States Period in China, and a minister of the Zhao royal family. That is Zhao Sheng. The son of King Wuling of Zhao and the younger brother of King Huiwen. Sima Qian called him "the best young man in the troubled times". He treated virtuous corporals with courtesy and had thousands of guests at his door. Pingyuan Jun was the prime minister of King Zhao Huiwen at first, and after the death of King Zhao Huiwen, he became the prime minister of King Zhao Xiaocheng. He was sealed in Dongwucheng (now northwest of Wucheng, Shandong). In the seventh year of King Zhao Xiaocheng's reign (259 BC), the Qin army besieged Handan (now Handan, Hebei Province). The State of Zhao sent Pingyuan Jun to report to Wei and seek help from the State of Chu. The retainer Mao Sui volunteered and went to Chu State with Lord Pingyuan to ask for help, and finally persuaded the King of Chu to rescue Zhao. Before the arrival of the reinforcements, the soldiers in Handan City were starved of food and the people had to exchange their bones for food. The situation was very critical. Lord Pingyuan dispersed all his wealth and mobilized soldiers to defend the city for three years until reinforcements from Chu and Wei arrived and Handan was relieved of the siege. Although Lord Pingyuan had made great contributions to guarding Handan, he did not ask for a title from King Zhao.

Chunshen Jun (? ~ 238 BC)

One of the four princes during the Warring States Period in China, and the Prime Minister of Chu during the Warring States Period, that is, Huang Xie. Huang Xie was well-educated and good at eloquence. In the first year of King Kaolie's reign, he made Huang Xie his prime minister and granted him the title Chunshen Lord. Granted 12 counties in Huaibei.

Chunshen Jun was wise, loyal, generous and loving. He was known for his courtesy to virtuous officials, inviting guests, and assisting in governing the country. During the reign of King Qingxiang, King Zhao of Qin sent General Bai Qi to lead troops to defeat South Korea and Wei, and then united with the generals of South Korea and Wei to attack Chu. The situation was critical, and King Qingxiang sent the eloquent Lord Chunshen to come out. Envoy Qin, persuaded King Qin Zhao to retreat. King Qingxiang was seriously ill, and Lord Chun Shen planned to make the Prince of Chu, who had remained as a hostage in Qin, escape back to Chu and take the throne as King Kaolie. King Kaolie appointed him as prime minister. When the Qin army besieged Handan, Lord Chun Shen led troops to rescue him. Later, he led Chu's Northern Expedition to destroy Lu.

At that time, King Kaolie of Chu had no children, and Lord Chun Shen was worried about this. Later, Chun Shenjun married the sister of Li Yuan, a native of Zhao. After Li Yuanmei became pregnant, she presented herself to King Kaolie and gave birth to a son who was established as the prince (i.e. King Chu You), while Li Yuanmei was established as the queen. As a result, Li Yuan gradually gained power and raised dead soldiers in order to kill Chun Shenjun. After King Kaolie died of illness, Li Yuan ordered people to ambush inside Thorny Gate and killed Lord Chun Shen and his family.

Xinlingjun (? ~ 243 BC)

One of the four monarchs during the Warring States Period in China. His real name is Wei Wuji. A nobleman of Wei State during the Warring States Period. The younger brother of King Anyu of Wei. Because he was granted the title of Xinling (now Ningling, Henan), he was called Lord Xinling. He was courteous to virtuous people and invited a wide range of guests. It is said that he had 3,000 diners. In 257 BC, Qin besieged Handan (now part of Hebei), the capital of Zhao, and King Zhao asked King Wei for help. At first, the king of Wei sent Jin Bi to rescue him. But the King of Wei was afraid of Qin and banned it, so Jin Bi led his troops only to Ye (now Linzhang, Hebei). Lord Xinling stole the tiger talisman, killed Jin Bi, led his army to rescue Zhao, and defeated Qin. He stayed in Zhao for 10 years. In 247 BC, when Qin attacked Wei, the king of Wei was forced to appoint him as a general. He united the five countries to repel the Qin army's attack and defeated the Qin army beyond the river. Qin's bribers slandered him, and the king of Wei listened to the slander and alienated Lord Xinling. As a result, he stayed behind closed doors to excuse his illness, drank too much, and died.

Mengchangjun

One of the four princes during the Warring States Period in China and a minister of the Qi clan. That is Tian Wen. Tian Wen's father, Jingguo Jun Tian Ying, was the youngest son of King Wei of Qi and the younger brother of King Xuan of Qi. Lord Mengchang inherited the title of his father Tian Ying and granted him the title of Xue (now southeast of Tengzhou, Shandong). He was called Duke Xue and Lord Mengchang. When Mengchang was in Xue, he invited a large number of guests, totaling more than 3,000 people. King Zhao of Qin heard about Lord Mengchang's virtues and wanted to see Lord Mengchang. After Mengchangjun entered Qin, he was appointed as prime minister. Later, King Zhao of Qin believed the slander, imprisoned Lord Mengchang and planned to kill him. With the help of his retainers, Lord Mengchang fled back to Qi. After Mengchangjun returned to Qi State, he was appointed Prime Minister of Qi State. He insisted on uniting Han and Wei to contain the Chu State, and developing joint forces to resist Qin. Later, he was falsely accused and was suspected by the King of Qi. Xie fell ill and returned to Xue as an old man. Later, because the increasingly arrogant and extravagant King of Qi still wanted to get rid of him, he had to flee to Wei State again and was appointed as the Prime Minister of Wei by King Wei Zhao. He advocated uniting Qin, Zhao and Yan to attack Qi together, which changed the situation of the Warring States Period. After the death of King Qi, Lord Mengchang returned to the country and established a neutral position among the vassal states.

I don’t know if that’s right.