Usermaatre Heqamaatre Setepenamun Ramesses IV (also written Ramses or Rameses) was the third pharaoh of the Twentieth Dynasty of the New Kingdom of Ancient Egypt. He was the second son of Ramesses III and became crown prince when his elder brother Amenherkhepshef died aged 15 in 1164 BC, when Ramesses was only 12 years old. His promotion to crown prince: is suggested by his appearance (suitably entitled) in a scene of the festival of Min at the Ramesses III temple at Karnak, which may have been completed by Year 22 [of his father's reign]. (the date is mentioned in the poem inscribed there) As his father's chosen successor, the prince employed three distinctive titles: "Hereditary Prince", "Royal scribe" and "Generalissimo." The latter two titles are mentioned in a text at the temple of Amenhotep III at Soleb and all three titles appear on a lintel now in Florence, Italy. As heir-apparent he took on increasing responsibilities; for instance, in Year 27 of his father's reign, he is depicted appointing a certain Amenemope to the important position of Third Prophet of Amun in the latter's TT 148 tomb. Amenemope's Theban tomb also accords prince Ramesses all three of his aforementioned sets of royal titles. Despite the 31-year reign of his father Ramesses III, Ramesses IV was only 21 when he became pharaoh. His rule has been dated to 1155 to 1149 BC. Family It is now believed that Ramesses IV's mother was most likely Queen Tyti from recently discovered notes published in the 2010 issue of the Journal of Egyptian Archaeology. They reveal that Tyti—who was a king's daughter, a king's wife and a king's mother in her own right—was identified in Papyrus BM EA 10052 (i.e., the tomb-robbery papyri) to be a queen of Ramesses III, Ramesses IV's father. The 2010 JEA article authors—including Aidan Dodson—write that since Ramesses VI's mother is known to be a certain lady named Iset Ta-Hemdjert or Isis: only Ramesses IV and Ramesses VIII remain as candidates [for the son of Tyti]. Given that Ramesses VIII only reigned briefly some 25 years after his father’s death, it is hardly likely that the decoration of QV52, with the mwt-nsw (i.e., king's mother) title intimately mixed with Tyti’s other titles, could have been delayed this late to refer to him. This leaves Ramesses IV as the only credible primary 'subject' of the mwt-nsw title in the tomb.