Complex sentence: Iry-Hor's name appears on clay vessels from his tomb in Abydos and a clay seal with the hieroglyphs for "r-Ḥr" was found in Narmer's tomb and may refer to Iry-Hor.
Split into simpler sentences: Iry-Hor's name appears on clay vessels from his tomb in Abydos. A clay seal with the hieroglyphs for "r-Ḥr" was found in Narmer's tomb and may refer to Iry-Hor.