In Photos: The Life and Death of King Tut - Live Science. Tutankhamun was an Egyptian pharaoh who lived between roughly 1343 and 1323 B.C. Often called the "boy-king," he ascended the throne at around the age of 10. Today he's most famous for his tomb. which was discovered largely intact in the Valley of the Kings in 1922 by a team led by archaeologist Howard Carter.