Amenemhat I
The funerary cult of Unas established at his death continued until the end of the Old Kingdom and may have survived during the chaotic First Intermediate Period. The cult was still in existence or revived during the later Middle Kingdom (c. 2050 – c. 1650 BC). This did not prevent Amenemhat I and Senusret I (c. 1990 – c. 1930 BC) from partially dismantling the mortuary complex of Unas for its materials.