Tului (Tului, meaning mirror in Mongolian, 1193-1232), the fourth son (youngest son) of Genghis Khan Borjijin Temujin, also known as "Ye Ke Na Yan" ”(大官人).

Genghis Khan divided his sons into confederates during his lifetime, and Tuo Lei stayed with his parents, inheriting his father's Oduoer, pastureland and army in Onan and Qinglu Company. Genghis Khan left an army of approximately 129,000 people, most of which (101,000) were inherited by Tolei. After Genghis Khan died in 1227, his third son, Boljijin Wokuotai, succeeded to the throne and oversaw the country. In 1232, he led his army to defeat the Jin army and died of illness on the way back to the army. After his eldest son, Borjijin Mengge, took over the throne, he was given the posthumous title "Emperor Yingwu" and the temple name "Ruizong".

In 1265 (the second year of the Yuan Dynasty), when his fourth son Kublai Khan came to power, his posthumous title was changed to Emperor Jingxiang. In 1309 (the second year of his reign), he was given the posthumous title "Emperor Rensheng Jingxiang".

Extended information:

During the Western Expedition in 1219, Tuo Lei and his father Genghis Khan led the main force across the desert and headed towards Buhua La. The father and son led the Mongolian army from the black sandstone and crossed the Iron Gate Pass (the Buzkal Pass in the Baisong Mountains, 90 kilometers south of Shahrshaboz, Uzbekistan today) and headed south. Genghis Khan selected strong men from all armies to form an elite force, and ordered Tuo Lei to lead it. They first crossed the Amu River to capture the cities of Khorasan. Later, Genghis Khan entered Talihan Village (today's north of the upper reaches of the Murgab River in Afghanistan).

The soldiers and civilians of Talihan held on to the danger, and the Mongolian army besieged it for 7 months. It was not until Tuo Lei Feng recalled his army to join his father that the mountain city was captured. The city's defenders and people were massacred. Soon, Tolei entered the Khorasan region on the order of his father and carried out brutal revenge on the cities that dared to resist the Mongols.

Once, because a small Mongolian army was annihilated under the city of Malu, Tuo Lei led 70,000 elite troops to besiege Malu in March 1221. However, after the Mongolian army entered the city, they only selected 400 craftsmen and then massacred all residents and soldiers. The number of dead reached 700,000, and Malu City was razed to the ground.

Baidu Encyclopedia-Boer Jijin·Tuo Lei