After the death of the last of the ramessides, Smendes, Lord of Tanis, proclaimed himself Pharaoh, founded the XXI dynasty and initiated one of the most unknown but attractive periods in the history of Egypt, the Third Intermediate Period. This book deals with the burials of the pharaohs from the 21st - 30th Dynasties of Egypt. Through detailed investigation of the tombs and the hieroglyphes, the author has tried to identify the individuals buried in these tombs. The royal New Kingdom tombs were taken as a reference point and a comparison with the texts and iconography was established. This enables a better understandong of the traditions that followed in the Third Intermediate Period and naturally the changes that had taken place in the choice of the religious compendiums and representations associated with this period. In Spanish Language.