Tomb KV9 in Egypt's Valley of the Kings was originally constructed by Pharaoh Ramesses V. He was interred here, but his uncle, Ramesses VI, later reused the tomb as his own. The architectural layout is typical of the 20th Dynasty – the Ramesside period – and is much simpler than that of Ramesses III's tomb (KV11).
The workmen accidentally broke into KV12 as they dug one of the corridors. The works on KV9 are responsible for the preservation of the tomb of Tutankhamun, the entrance of which was buried beneath huts built for the craftsmen working on Ramesses VI's tomb.
In 2020, the Egyptian Tourism Authority released a full 3D model of the tomb with detailed photography, available online.
Decoration
left|thumb|The parts of KV9 built by Ramesses V and Ramesses VI
The tomb has some of the most diverse decoration in the Valley of the Kings. In fact Ramesses VI, in a break with tradition, used the decoration program of the Osireion at Abydos as the template for his tomb. Its layout consists of a long corridor, divided by pilasters into several sections, leading to a pillared hall, from which a second long corridor descends to the burial chamber. The digging of the burial chamber was not fully completed; its back wall has two pillars which are still connected to the wall behind them instead of standing separate. The ceilings are decorated with astronomical figures and constellations in the first few divisions of the corridor, while in the last two divisions, and continuing into the first hall [designated Hall E by Piankoff], is a double presentation of both the Book of the Day and the Book of the Night, framed by an elongated image of the goddess Nut. The ramp descending to the next corridor is flanked on either side by two images of winged cobras with crowns, representing the goddesses of Upper and Lower Egypt. They were left by pilgrims, mostly Greeks, who in the Ptolemaic and Roman periods traveled to the site from different parts of Egypt and the Mediterranean. The inscriptions were written in black or, less frequently, red ink, mainly in Greek but also in Latin, Demotic, and Coptic. They appear in different parts of the tomb, usually on the upper parts of the walls, which corresponds to the higher floor level (the corridors were partly filled in at that time). Visitors' names form the majority of the graffiti, but there are also longer texts which provide more information about their authors, including their occupation. They tell us that philosophers, doctors, and high-ranking officials were among the pilgrims.
Other graffiti include "I visited and I did not like anything except the sarcophagus!", "I admired!" and "I cannot read the hieroglyphs!". The latest identifiable person to have visited the tomb and left a graffito may have been Amr ibn al-As, the Muslim conqueror of Roman Egypt during the Arab–Byzantine wars, if he is the person named as "Ambros" () in one of them.