 The Ninth pylon was erected along the southern axis using material known as talatat from the now demolished Akhetaten.Construction of the Hypostyle Hall may have also begun during the eighteenth dynasty, though most building was undertaken under Seti I and Ramesses II.Merenptah commemorated his victories over the Sea Peoples on the walls of the Cachette Court, the start of the processional route to the Luxor Temple.