17 Facts About Genghis Khan and His Legacy

Genghis Khan attained the heights of power with a long and storied life. Here are 17 facts about the ruler and his legacy.

Updated: Dec 9, 2025 written by Greg Beyer,BA History & Linguistics, Journalism Diploma

genghis khan facts

 

Conquering vast swathes of territory with the might of his Mongol hordes, Genghis Khan was a terrifying and brutal figure. He was also one of the most influential human beings in history, leaving a legacy not only of carnage and destruction but of law, order, and empire-building that would echo through the centuries. His actions irrevocably changed the course of human history and helped shape civilization as it is today.

 

Often misunderstood and glossed over as just another barbarian, here are 17 remarkable facts about Genghis Khan.

 

1. His Birth Was Regarded as Divine

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Genghis Khan. Source: BBC

 

Given the name Temujin after one of the enemies his father had conquered, Genghis Khan, as he later became known, was born under auspicious circumstances. A clot of blood in his hand signaled that there was an important spiritual connection to him. He was also said to have been of divine origin, with his first ancestor being a gray wolf.

 

2. He Was to Be Married at the Age of Nine

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Ankhnyam Ragchaa in Genghis Khan (2005). Source: IMDb

 

When Temujin was just eight years old, his father, Yesügei, arranged a marriage between his son and Börte, the daughter of a powerful chieftain. Through this marriage, Yesügei would gain a powerful ally, but before the marriage could happen, Temujin would have to spend a significant amount of time in his future father-in-law’s household as part of Börte’s dowry. After delivering Temujin to his new home, Yesügei began the journey back. He, however, would not live much longer.

 

3. His Father Was Poisoned by a Rival Clan

Temujin’s father, Yesügei, was poisoned when Temujin was just nine years old. While traveling home from the household of Dei Sechen, Temujin’s future father-in-law, he met up with Tatar travelers on the way. Unbeknownst to him, they recognized him as an old enemy and slipped poison into his food. It was not a fast-acting poison, and Yesügei made it home, although his condition had significantly deteriorated. He died shortly thereafter.

 

4. He Lived in Poverty

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Genghis Khan and his hordes lived in yurts, portable tents still used in Mongolia to this day. Source: BBC

 

With his father dead, many leaders and soldiers abandoned the clan, and Temujin spent a portion of his childhood in dire poverty. His family was reduced to a simple hunter-gatherer lifestyle just to survive. They foraged for food, collecting roots and nuts while also fishing and hunting small game.

 

5. Genghis Khan Murdered His Half-Brother

During the time when his family was suffering from dire hardship after being abandoned by the clan, life was difficult and frustrating. He had fights with his half-brother Behter over who was the rightful heir of Yesügei. Temujin was the son of Yesügei’s chief wife, but Behter was two years older. This meant that Behter could marry Temujin’s mother, Hoelun, and become Temujin’s stepfather. The situation came to a head one day while fighting over hunting spoils. Temujin and his younger brother, Qasar, ambushed and killed Behter.

 

6. He Was Taken Prisoner by One of His Father’s Former Allies

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Horse and rider on the Mongolian Steppe. Source: Kate Molleson/The Guardian

 

It is claimed that Temujin was held captive on more than one occasion. On one of these occasions, he was taken prisoner by the Tayichiud clan, which had been allied with his father before his death. Temujin escaped his confines and hid near the Onon River and then in the tent of a man named Sorkan-Shira, who had seen him but had decided not to raise the alarm. Sorkan-Shira sheltered Temujin for three days before helping the young boy escape.

 

7. He Married Börte When He Was 15

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Temüjin proclaimed as Genghis Khan in 1206, as illustrated in the Jami’ al-tawarikh manuscript by an unknown artist, ca. 1430-1434. Source: National Library of France, Paris

 

When Temujin was powerful enough and had accrued a retinue of allies and his own camp, he returned to Dei Sechen and requested to marry the women to whom he had been betrothed. Dei Sechen was delighted to see Temujin, who he feared had been lost or killed. Dei Sechen immediately agreed to the marriage with Börte, and Temujin gained a powerful ally who helped him build up a force powerful enough to start carving out an empire.

 

8. He Built a Huge Empire

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Map of Genghis Khan’s Mongol Empire. Source: TheCollector

 

By the time of his death in 1227, Genghis Khan’s empire covered roughly 4,600,000 square miles (12,000,000 square kilometers). Less than a century later, the size of the Mongol Empire was doubled, making it the largest contiguous empire and the second-biggest empire in history (the British Empire was bigger).

 

His empire covered parts of what are now China, Korea, Pakistan, Iran, Iraq, Turkey, Afghanistan, Moldova, Kazakhstan, Armenia, Georgia, Turkmenistan, Kuwait, Kyrgyzstan, Tajikistan, Uzbekistan, and a large portion of Russia.

 

9. He Committed Multiple Genocides

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A Mongol warrior. Source: William Cho / Business Insider

 

With brutal tactics that involved slaughtering entire cities if they did not surrender, Genghis Khan is responsible for the deaths of an estimated 40 million people. These genocides occurred mainly in China and northern Iran, but the scope of his killing was far and wide. Forty million people represented around 11% of the world population in the 13th century.

 

“The greatest happiness is to scatter your enemy, to drive him before you, to see his cities reduced to ashes, to see those who love him shrouded in tears, and to gather into your bosom his wives and daughters.”
– Genghis Khan

 

10. He Was Tolerant of Other Religions

At a time when religious intolerance was rife in Europe and the Crusades were underway in the Holy Land, Genghis Khan was practicing the exact opposite. He showed a keen interest in other religions and studied Islam, Christianity, Taoism, and Buddhism. Throughout his empire, he passed a law declaring religious freedom. Places of worship were even exempt from paying taxes.

 

11. He Promoted Ethnic Diversity in his Empire

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Statue of Genghis Khan by Zoljargal Nyambuu. Source: Smithsonian Magazine

 

The Mongols, being a nomadic people, were often ill-equipped to deal with the bureaucracy and other challenges that came with ruling a huge empire. The people he conquered often had skills that the Mongols lacked. Thus, Genghis Khan made a point of promoting ethnic diversity to make use of the skills that certain cultures possessed.

 

12. His Harem Was Massive

Although only 44 wives and concubines are documented, it is estimated that Genghis Khan had over 400 women in total in his harem. Managing such a large harem was difficult. It was divided into four sub-harems called “ordos,” and each wife or concubine had their own rank. Each ordo was ruled over by one of Genghis Khan’s four principal wives, who had the rank of khatun (great empress). The wives and concubines were housed in yurts, and Genghis Khan would visit several of them every night. As a result, he had an extraordinary number of children.

 

13. He Created a Postal System

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Battle between Monogols and Chinese in Jami’ al-tawarikh by Rashid al-Din, 1211. Source: Bibliothèque nationale de France, Département des Manuscrits

Communication was key to administering the vast territories under the control of the Mongolian
Empire, which stretched from China to Eastern Europe and the Middle East. One of Genghis
Khan’s first orders was the construction of a postal network. Known as the “Yam”, it was a
relay system that utilized mounted couriers traveling between post houses and way stations,
many of which were equipped with lodgings, food, and fresh horses for the rider to switch if
necessary.

Messages and goods were sent at unprecedented speeds that even outclassed some later
postal systems in 19th-century Europe. In addition, the information network acted as eyes
and ears for the khan, as well as providing protection for travelers.

 

14. Nobody Knows What He Looked Like

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A portrait of Genghis Khan, 14th century. Source: National Palace Museum, Taipei

 

Genghis Khan had a strict rule that his face could never be reproduced in any paintings,
sculptures, or engravings. Contemporary accounts of what he looked like were vague,
second-hand, and questionable. Most accounts describe him as tall and strong with a
substantial beard, while Persian chronicler Rashid al-Din, who never met the khan, claimed
he had red hair and green eyes! Genghis Khan’s image was only reproduced after his death.
As a result, nobody knows what he really looked like.

 

15. How He Died Is Subject to Debate

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Genghis Khan Source: Brooklyn Museum

 

There are many theories as to how Genghis Khan died, and nobody knows for sure how it happened. One theory is that he was thrown from his horse and died from his injuries. Another theory is that he died from pneumonia or malaria.

 

Others argue that he died in combat during his final battle with the Chinese. A popular theory, at least from the perspective of telling a great story, is that he was murdered by a Chinese princess as an act of revenge for him having killed her family and to stop him from raping her. She snuck into his tent at night and castrated him with a concealed dagger, and he died from his injuries.

 

16. His Descendants Are His Biggest Legacy

 

Naturally, having such a big harem meant that Genghis Khan also had many children. He had 13 official children: eight boys and five girls. This, of course, does not represent the total number of children he fathered. Despite his large harem, tradition claims that he had a total of 120 children. This seems a conservative amount when one considers the genetic legacy of Genghis Khan, as proven by DNA testing today.

 

By examining genes in the Y chromosome, it has been shown that 8% of men in the region of the former Mongolian Empire are direct descendants of Genghis Khan. This represents about 1 in 200 men worldwide.

 

17. Nobody Knows Where He’s Buried

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Mongolian people. Source: Smithsonian Institution Global

 

Upon his death, Genghis Khan was buried in an unmarked grave by his most trusted followers. To keep this location a secret, they murdered everyone in the path of the funeral procession. It is speculated that his burial place is on the Onon River near his birthplace in Mongolia.

 

Genghis Khan is a controversial figure. In Mongolia, he is understandably revered as an iconic hero of the nation. There are many statues of him, and he appears on the banknotes of the Mongolian currency. He brought law, order, and civilization to his empire, but along with these came brutal genocides and misery for countless millions.

 

What cannot be argued is that, for good or ill, he was an important figure who changed the course of human history.

photo of Greg Beyer
Greg BeyerBA History & Linguistics, Journalism Diploma

Greg is an editor specializing in African history as well as the history of conflict from prehistoric times to the modern era. A prolific writer, he has authored over 400 articles for TheCollector. He is a former teacher with a BA in History & Linguistics from the University of Cape Town. Greg excels in academic writing and finds artistic expression through drawing and painting in his free time.