This ruler seems to have made little use of the
cartouche – which was a
pharaonic prerogative – since it was used only for the throne name, Nubwoserre, though not always. His personal name never appears inside a cartouche, and is simply reported as "
the son of Ra, Ya'ammu". Similar to his suggested predecessor
Yakbim Sekhaenre, there is no direct evidence that Ya'ammu's throne name was Nubwoserre: the association is based on stylistic features of the
seals and was proposed by
William Ayres Ward and later elaborated by Ryholt;
Daphna Ben-Tor disputed this identification, pointing out that the seals of the many rulers living during this period are too similar to make such correlations on the basis of mere design features. The
Turin King List can not help with this issue since the ruler does not appear on it, likely due to a
lacuna. Assuming that Ward and Ryholt were right, Nubwoserre Ya'ammu is attested by 26 rather crude
scarab seals (more precisely, 19 naming Nubwoserre and 7 naming Ya'ammu); based on that, Ryholt estimated for him a reign length of around ten years, in the interval 1780–1770 BCE. However, about the events of his reign absolutely nothing is known. Israeli Egyptologist
Raphael Giveon identifies Ya'ammu with his proposed predecessor Yakbim. ==References==