Twentieth dynasty of Egypt, from the 16th to the 11th century BC, between the Second Intermediate Period, and the Third Intermediate Period. Through military dominance abroad, the New Kingdom saw Egypt's greatest territorial extent. It expanded far into Nubia in the south, and held wide territories in the Near East. Egyptian armies fought with Hittite armies for control of modern-day Syria. Three of the best known pharaohs of the New Kingdom are Akhenaten, also known as Amenhotep IV, whose exclusive worship of the Aten is often interpreted as the first instance of monotheism, Tutankhamun known for the discovery of his nearly intact tomb, and Ramesses II who attempted to recover the territories in modern Israel/Palestine, Lebanon and Syria that had been held in the Eighteenth Dynasty. His reconquest led to the Battle of Qadesh, where he led the Egyptian armies against the army of the Hittite king Muwatalli II. Eighteenth Dynasty The Eighteenth Dynasty ruled from c. 1550 to 1292 BC: Nineteenth Dynasty The Nineteenth Dynasty ruled from 1292 to 1186 BC and includes one of the greatest pharaohs: Ramesses II the Great. Twentieth Dynasty The Twentieth Dynasty ruled from 1190 to 1077 BC: Third Intermediate Period The Third Intermediate Period (1077–664 BC) marked the end of the New Kingdom after the collapse of the Egyptian empire at the end of the Bronze Age. A number of dynasties of Libyan origin ruled, giving this period its alternative name of the Libyan Period. Twenty-First Dynasty The Twenty-First Dynasty was based at Tanis and was a relatively weak group. Theoretically, they were rulers of all Egypt, but in practice their influence was limited to Lower Egypt. They ruled from 1077 to 943 BC. Theban High Priests of Amun Though not officially pharaohs, the High Priests of Amun at Thebes were the de facto rulers of Upper Egypt during the Twenty-first dynasty, writing their names in cartouches and being buried in royal tombs. Twenty-Second Dynasty The pharaohs of the Twenty-Second Dynasty were Libyans, ruling from around 943 to 728 BC. Twenty-Third Dynasty The Twenty-Third Dynasty was a local group, again of Libyan origin, based at Herakleopolis and Thebes that ruled from 837 to c. 735 BC. Rudamun was succeeded in Thebes by a local ruler: Twenty-Fourth Dynasty The Twenty-fourth Dynasty was a short-lived rival dynasty located in the western Delta (Sais), with only two pharaohs ruling from 732 to 720 BC. Twenty-Fifth Dynasty