Zhu Er (1195 1263), a native of the Yonggu clan. He first lived in the clouds, and his father, Hei Dangong, was the shepherd of the golden herds. After driving the horses he pastored to Genghis Khan, he ended up as an official. According to Zhu Er, he followed the Yuan army to destroy the Song Dynasty and destroy the Jin, and fought in the south and the north, with outstanding achievements. In the first year of Yuan Renzong's Yan Yanyou, he gave Zhong Zuoyun Meritorious Heroes, Taibao, Yitong Three Divisions, Shangzhu State, and the Duke of Qin. "Wu Xuan". When Zhu Er was 14 years old, he was subordinate to the Chagatai Department of Genghis Khan. Once from Chagatai in the dense forest hunting, first shot a few moose and in the middle, suddenly there are two tigers suddenly rushed out, everyone is shocked, according to Zhu Er with a bow to shoot, two arrows in a row, two tigers are dead, from the good shooting courage is famous. Chagatai is very important and likes him. Genghis Khan went west to seek Sigan, Ali Mari and other countries, and made military merits according to Zhu Er, and was awarded the post of a thousand households. Later, he conquered Jishizhou (now Xunhua, Qinghai) from Taizu, bravely killed the enemy and landed in his city first, and then pulled out his city. He also besieged Hezhou (now Linxia, Gansu) and beheaded more than 40 enemies. Break Lintao again, attack Deshun, and behead more than 100 levels. Yuan Taizong Wo Kotai ascended the throne, respected Cha Gatai as the emperor's brother, and took Zhu Er as the marshal. According to Zhu Er, he commanded the soldiers to build a post station from Dunhuang to Yumen Pass, so as to open up the road to the Western Regions. In the fourth year of Shaoding in the Southern Song Dynasty (1231), he surrounded Fengxiang with Taizong. According to Zhu Er, the troops were divided to attack the southwest corner. The walls of the city were scattered, and they could not be approached. According to Zhu Er, a group of daredevils were selected and ordered to brave the stone to climb the city. Fengxiang City was finally breached, and Liu Xingge, the gold general, was killed. After capturing Fengxiang, according to Zhu Er, he divided his troops to capture Xihe Prefecture. The Mongol army fought hard, the Song army was defeated, and the Song garrison general Jiang Jun was captured according to Zhu Er. The remnants of the Song army retreated to the revenge pool. According to Zhu Er, he led the army to capture Qiuchi, and then pulled out Pingliang, and the Mongolian army was greatly shocked. So Qingyang, Yuan, and Ningzhou all fell.
At this time, Tuo Lei divided his troops into the Golden Realm, and Zhu Er was his vanguard. First capture the Dasanguan (now southwest of Baoji, Shaanxi). At that time, the Song people had burned the plank road, and the Mongolian army reverted to Yuguan from Liangdang County, and garrisoned Chuzhou. The Song Dynasty made Gui Ruyuan Shouxingyuan (now Hanzhong, Shaanxi). According to Zhu Er, he borrowed from Gui Ruyuan and said: "Song and Jin have been at enmity for a long time, why don't you borrow our army to wash away the national shame?" Today, our army wants to take advantage of Nanzheng, from Jinzhou (now Ankang, Shaanxi), Yangzhou (now Yangxian, Shaanxi), Datang Prefecture (now Tanghe, Henan), and Dengzhou, to join the army to destroy Jin, which is not only beneficial to our army, but also to the Song Dynasty. Gui Ruyuan immediately sent someone to guide the Mongolian army from Wuxiu Pass to Dengzhou, and by the way, broke through the small pass in the west, and the Jin people were shocked, thinking that the Mongolian army had fallen from the sky. The Mongol army went straight to Junzhou (now Yu County, Henan) and joined forces with the prince according to Chitai and others. In Sanfeng Mountain (now belonging to Henan Province), every time there is heavy snow in the world, the golden soldiers freeze and have fallen. According to Zhu Erxian, he led the elite troops of his department to meet the Jin soldiers, and the Mongolian army then fought the enemy, and the Jin soldiers were defeated. Jin Aizong went to Caizhou. In December, according to Zhu Er, he besieged Caizhou with the Mongolian army, and the city was broken and died.
In the third year of Duanping in the Southern Song Dynasty (1236), the Yuan army attacked Shu. According to Zhu Er, the gunners were the vanguard. The first to break through the Chang, to capture Jiezhou, and then to attack Wenzhou. The Song general Liu Lu refused to defend the city, did not capture it for several months, the spy found out that there was no well in the city, and occupied the way to take its water according to Zhu Er, so he led the warriors to climb the city on the ladder, killed dozens of people who guarded the female wall in the city, and then pulled out the city. Liu Lu died in battle. At this time, according to Zhu Er, he also recruited the Tubo chieftain to survey and drag Mengjia and other ten tribes, all of whom were given silver charms, and the Tubo people were safe. Later, he led the army to settle Longzhou (now Longxian County, Shaanxi), and then joined the Mongolian army of the People's Congress Sanguan, and marched to Chengdu, Kezhi, and then returned to the division. Soon, Chengdu rebelled.
In the first year of Yuan Zhongtong (1260), Kublai Khan ascended the throne, and the prince had conspirators at that time. According to Zhu Er, due to his old age, he handed over the army to his son to lead. Kublai Khan sent the kings Hadan, Habichi, and Ahomasi to ask for it. According to Zhu Er, he said: "It is difficult to settle today, and someone has invaded Guanlong, how can it be when the courtiers are lying in peace?" Although I am old, I can still break the thief. "Patriarch Kublai Khan approved. Then he led his troops out and fought with Ahma. It was a time when the sky was windy, the day was dark, and the battle lasted until the afternoon, and the Alan and Hundu naval soldiers were defeated, and the beheadings could not be calculated. According to Zhu Er and the commander-in-chief Wang Liangchen, he won Alantal, Hun Duhai and so on. The ancestor gave a book to praise the virtues and demeanor of Zhu Er, and gave a bow and arrow brocade clothes. In the fourth year of Zhongtong (1263), he died at the age of 69.