The Eighteenth Dynasty of Egypt (notated Dynasty 18, aka Thutmosid Dynasty) is classified as the first dynasty of the New Kingdom of Egypt, the era in which ancient Egypt achieved the peak of its power. It spanned the period from 1549/1550 to 1292 BC. Several of Egypt’s most famous pharaohs were from this dynasty, including Tutankhamun, Hatshepsut, the longest-reigning woman pharaoh of an indigenous dynasty, and Akhenaten, the “heretic pharaoh”, with his Great Royal Wife, Nefertiti.