Part of the extensive necropolis of ancient Memphis, located to the south of the most important section at Saqqara. There are five royal pyramids here, including two built by king Sneferu of the 4th Dynasty. The oldest is called the Bent Pyramid because of a change in the angle of the upper part, due to technical problems. The other is called the Red Pyramid because of the red colour of the locally quarried stone used for its construction. After the Great Pyramid, built by Sneferu's son Khufu at Giza, this is the largest pyramid in Egypt. The other pyramids at Dahshur date from the Middle Kingdom and were constructed for Amenemhat II, Senwosret III and Amenemhat III. The tomb of Amenemhat II is the only one with a stone core, whereas the other two have mudbrick cores. Amenemhat III also had a pyramid in Hawara, which is assumed to have been his actual tomb after the construction of  that at Dahshur ran into trouble. Nearby were found the tombs of various princesses from the 12th Dynasty in which many priceless pieces of gold jewellery were discovered.