Ramesses II was of a "Berber type" and hence – according to Ceccaldi's outdated, "race"-based analysis – fair-skinned. Subsequent microscopic inspection of the roots of Ramesses II's hair proved that the king's hair originally was red, which suggests that he came from a family of redheads. This has more than just cosmetic significance: in ancient Egypt people with red hair were associated with the deity Set, the slayer of Osiris, and the name of Ramesses II's father, Seti I, means "follower of Seth". However, Cheikh Anta Diop disputed the results of the study and argued that the structure of hair morphology cannot determine the ethnicity of a mummy and that a comparative study should have featured Nubians in Upper Egypt before a conclusive judgement was reached. In 2006, French police arrested a man who tried to sell several tufts of Ramesses' hair on the Internet. Jean-Michel Diebolt said he had gotten the relics from his late father, who worked on the analysis team in the 1970s. They were returned to Egypt the following year. In 1980, James Harris and Edward F. Wente conducted a series of X-ray examinations on New Kingdom Pharaohs crania and skeletal remains, which included the mummified remains of Ramesses II. The analysis in general found strong similarities between the New Kingdom rulers of the 19th Dynasty and 20th Dynasty with Mesolithic Nubian samples. The authors also noted affinities with modern Mediterranean populations of Levantine origin. Harris and Wente suggested this represented admixture as the Rammessides were of northern origin. During the examination, scientific analysis revealed battle-wounds, old fractures, arthritis and poor circulation. Ramesses II's arthritis is believed to have made him walk with a hunched back for the last decades of his life. A 2004 study excluded ankylosing spondylitis as a possible cause and proposed diffuse idiopathic skeletal hyperostosis as a possible alternative, which was confirmed by more recent work. A significant hole in the pharaoh's mandible was detected. Researchers observed "an abscess by his teeth (which) was serious enough to have caused death by infection, although this cannot be determined with certainty". After being irradiated in an attempt to eliminate fungi and insects, the mummy was returned from Paris to Egypt in May 1977. In April 2021, his mummy was moved from the Egyptian Museum to the National Museum of Egyptian Civilization along with those of 17 other kings and 4 queens in an event