Tutankhamun (sometimes called King Tut) was a Pharaoh (like a king) of Ancient Egypt from about 1334 BC to 1323 BC. He became Pharaoh of the 18th dynasty (royal family) during the New Kingdom at 9 years old. Tutankhamun ruled only 9 years and died very young, at 18, so he is known as The Boy King. He was married to his half-sister Ankhesenamun, daughter of Queen Nefertiti,his step mother.

Some scientists and historians think Tutankhamun was killed by someone else. When his mummy was examined by a CAT scan in January 2005, a very bad break in the leg was found. This may have been from a riding accident. Most scientists now think that Tutankhamun died because his broken leg got infected. Others believe that his vizier, Ay, murdered him, because Ay also succeeded him as Pharaoh. Because of this, Tut was buried in Ay's tomb and Ay in his. Other sources say that he had died from a sickness.

The tomb was discovered in March 1922 by the famous British archaeologist Howard Carter.