Tutankhamun was an Egyptian pharaoh of the 18th dynasty during the period of Egyptian history known as the New Kingdom. His original name, Tutankhaten, means "Living Image of Aten", while Tutankhamun means "Living Image of Amun". In hieroglyphs the name Tutankhamun was typically written Amen-tut-ankh, because of a scribal custom that placed a divine name at the beginning of a phrase to show appropriate reverence. In February 2010, the results of DNA tests confirmed that Tutankhamun's Y-chromosome belongs to the R1b haplogroup. R1b is the most common Y-chromosome haplogroup in Europe reaching its highest concentrations in Ireland, Scotland, western England and the European Atlantic seaboard, rippling through the rest of Europe. The tests also confirmed that he was the son of Akhenaten and his sister/wife ,whose name is unknown but whose remains are positively identified as "The Younger Lady".