Who was King Tut, the teen pharaoh who captivated the world?

King Tut, or Tutankhamun, is one of the most famous rulers who ever lived thanks to the 1922 discovery of the pharaoh’s tomb in Egypt’s Valley of the Kings. The find stirred the imaginations of millions who were fascinated by the boy king’s golden-masked mummy.

But what do we really know about King Tut? Although many details of his reign remain lost to time, historians have spent years trying to piece together the pharaoh’s life and legacy. Here’s what they’ve learned—and the biggest questions that remain.

King Tut’s rise to the throne

Born during ancient Egypt’s 18th Dynasty—which stretched from 1550 B.C. to 1295 B.C.—Tut began his life under a different name: Tutankhaten.

In the years before Tut rose to the throne, Egypt was going through a period of great upheaval. King Amenhotep IV, who is believed to be Tut’s father, had turned away from his culture’s many gods to worship a sun god called the Aten. In honor of the new deity, he changed his own name to Akhenaten and named his son Tutankhaten, meaning “living image of Aten.”

But around 1336 B.C., King Akhenaten died after about 17 years on the throne—and nine-year-old Tut ascended to power. The boy king restored the old ways of the kingdom, bringing back its many gods and opening new temples.

(See the enduring power of King Tut as never before.)

The son of Akhenaten also changed his name to Tutankhamun, which meant the “living image of Amun,” the Egyptian god of the air. He also took on the throne name, Nebkheperure, which was a nod to the old sun god Re, or Ra.

He married a woman named Ankhesenamun, a daughter of Akhenaten and Queen Nefertiti. While the couple are not thought to have left any surviving children, two mummified fetuses found in Tut’s intact tomb were likely their stillborn daughters.

(Learn about King Tut’s family secrets)

Tutankhamun’s tomb

The rest of Tut’s short reign was fairly unremarkable. Ruling for only about nine years, Tutankhamun was one of the lesser known pharaohs of his time.

Some scholars theorize that royal advisers and priests may have even used the boy king as a puppet to reclaim power for themselves.

Others suggest that Tut’s successors removed his name from monuments and records because of his association with his reviled father, Akhenaten.

But there was one upside to that erasure: While most of the tombs in the Valley of the Kings were looted over the centuries that followed, Tut’s royal tomb was left relatively unspoiled.

When its treasures were finally brought to light, they inspired modern investigations into the young king’s life and what it reveals about the time of the ancient Egyptians.

(How was King Tut’s tomb found? Through grit and luck.)

King Tut’s mysterious death and lasting fame

One of the puzzles that has most vexed historians and scientists alike is how King Tut died.

Theories have abounded ever since British archaeologist Howard Carter discovered Tut’s tomb in 1922. Some suspect that he was murdered or died from malaria or another devastating disease.

Others have hypothesized that Tut’s chest—which is missing ribs and a sternum—might have been crushed in an accident or fall from his chariot.

Still others argue that he likely died an invalid, pointing to evidence of a clubfoot and canes that he may have used to walk.

(Discover King Tut's 5,000 treasures, by the numbers.)

Many of Tut’s treasures, including this figurine, were kept until recently at the cramped Egyptian Museum in Cairo. Artifacts long hidden in storage will be displayed—some for the first time—at the Grand Egyptian Museum.

Photograph by Paolo Verzone, National Geographic

One thing scholars do know is that Tut was young when he died—still a teenager by most accounts—and his death was unexpected.

Tut’s final resting place was in fact an unfinished burial chamber intended for some other courtier, and evidence suggests that it was prepared for the king’s body in a hurry.

(The last missing tomb from this wealthy Egyptian dynasty has been found)

It’s unclear whether we will ever fully understand the life of Tutankhamen, the boy king. But centuries after his short reign, King Tut’s memory continues to captivate the world, not just at the Valley of the Kings, a UNESCO World Heritage site since 1979. Artifacts for King Tutankhamun exhibits attract attention to the newly opened Grand Egyptian Museum.