Irsu (, "he who made himself"; alternatively Su) is the name used in Papyrus Harris I to designate a Khasu who became overlord of a group of local rulers nominally under Egyptian control, at a time of unrest between the Nineteenth and Twentieth Dynasties. The reading of the name is contested and the man may instead have simply been called Su. The events in which Irsu (or Su) participated likely took place outside of the Nile Valley, in the Asiatic territories of Egypt's empire. Debate on Irsu's activities In Egypt Irsu's rise to power is closely related to the situation in Egypt proper at the end of the Nineteenth Dynasty, which saw a civil war between Amenmesse and Seti II followed by economic decline. Modern understanding of the events occurring at the time is heavily dependent on the translation of Papyrus Harris I, a task which has proven difficult. In his 1906 translation of the document James Henry Breasted writes Hear ye that I may inform you of my benefactions which I did while I was king of the people. The land of Egypt was overthrown from without, and every man was (thrown out) of his right; they had no chief mouth for many years formerly until other times. The land of Egypt was in the hands of chiefs and of rulers of towns; one slew his neighbor, great and small. Other times having come after it, with empty years, Yarsu, a certain Syrian was with them as chief. He set the whole land tributary before him together; he united his companions and plundered their possessions. They made the gods like men, and no offerings were presented in the temples. This translation leaves open the possibility that Irsu acted in Egypt proper and consequently Chancellor Bay was considered a plausible candidate for this Irsu until 2000. However, an IFAO Ostracon no. 1864 found at Deir el-Medina and dated Siptah's fifth regnal year records that "Pharaoh, life health prosperity, has killed the great enemy, Bay". Because chancellor Bay died years before Irsu, he is no longer considered a plausible candidate for this historical figure. In Egyptian territories in Canaan In 1979 the Egyptologist Hans Goedicke produced a second translation based on a detailed grammatical analysis of the document: The land belonging to Egypt was abandoned abroad and every man in his loyalty, he did not have a chief-spokesman [i.e. a pharaoh]