The Eighteenth Dynasty of Egypt (notated Dynasty XVIII, alternatively 18th Dynasty or Dynasty 18) is classified as the first dynasty of the New Kingdom of Egypt, the era in which ancient Egypt achieved the peak of its power. The Eighteenth Dynasty spanned the period from 1550/1549 to 1292 BC. This dynasty is also known as the Thutmoside Dynasty for the four pharaohs named Thutmose. Several of Egypt's most famous pharaohs were from the Eighteenth Dynasty, including Tutankhamun (c. 1341 BC – c. 1323 BC). Other famous pharaohs of the dynasty include Hatshepsut (c. 1479 BC–1458 BC), the longest-reigning woman pharaoh of an indigenous dynasty, and Akhenaten (c. 1353–1336 BC), the "heretic pharaoh", with his Great Royal Wife, Nefertiti. The Eighteenth Dynasty is unique among indigenous Egyptian dynasties in that it had two queens regnant women who ruled as pharaohs: Hatshepsut and Neferneferuaten, usually identified as Nefertiti.