The First Will
In 1219 AD, Genghis Khan killed one hundred caravans sent by him due to repeated provocations from the Khwarezm Empire (Uzbek and Markand) The people and many envoys were very angry and decided to go out in person. At this time, Genghis Khan had already unified Mongolia, established a powerful empire, and dealt a heavy blow to Xixia and the Jin Kingdom, seizing the Jin Kingdom's central capital (Beijing), but this time it was he who launched the attack
The first western expedition. Therefore, Genghis Khan's expedition carried great risks, so the concubine also told Genghis Khan:
"You, the Great Khan, have climbed mountains, crossed rivers, and carried out long-distance expeditions. You just want to pacify the countries. But. All living things are impermanent. Once your body like a tree suddenly falls, who will be in charge of your people who are united like linen? Once your body like a pillar suddenly falls, your people like a flock of birds will be in charge. Who should you entrust to take charge of the four outstanding sons you have given birth to? This matter should be made known to all the disciples, servants, and concubines. Purpose."
Genghis Khan felt it made sense. The matter of the successor is related to the future of the entire Mongol Khanate and should indeed be explained. So, Genghis Khan issued an edict saying:
"Although she is a concubine, what she said is right. Brothers and sons, Boorchu and Muheli, none of you have ever proposed such a thing.
And because I did not inherit the throne of my ancestors (I conquered the world by myself), I did not think of (determining the successor), so I forgot about my son dying of old age. Among them, Zhuochi, you are the eldest son, what do you say? "("Secret History of Mongolia" Section 254)
This is the original source of the first will.
Genghis Khan had 39 concubines, the most noble of whom was his wife, the Great Queen Bortai Xuzhen. Bortai Xuzhen gave birth to four sons: the eldest son Zhuochi, the second son Chagatai, the third son Ogedai and the youngest son Tuo Lei. They all held important positions in the Mongol Empire and led a considerable number of Mongolian cavalry. He established his authority and strengthened his strength while fighting everywhere.