sentences:  King Mentuhotep II is its first known builder, but the original complex was enlarged and embellished during the 12th Dynasty, the less well-known 13th Dynasty (c. 1803–1649 BC), and later in the New Kingdom (especially under King Thutmose III).Ramesses II (1279–1213 BC) and his son Merneptah (1213–1203 BC) of the 19th Dynasty added colossi and statues.It was dismantled, except for a pylon, in the Late Period (7th/4th century BC) — but a new temple was begun by King Nectanebo II (360–342 BC), the last native pharaoh of Egypt, and continued by the Ptolemies.