His tomb, sarcophagus and mummy have never been found. Towards the end of his reign (in Year 16 – 364/3 BCE), probably to remedy the dynastic problems that plagued his predecessors, Nectanebo restored the long-lost practice of the co-regency, associating his son Teos to the throne. However, shortly after Teos' accession, his brother Tjahapimu betrayed him and managed to put his own son Nakhthorheb (Nectanebo II) onto the Egyptian throne.[1]