 Djedkare Isesi also undertook building activities in relation with his " sed " festival as indicated by a decree that he sent to his vizier Senedjemib Inti on the year of the 16th cattle count , praising him for his work . The decree mentions the construction of a broad rectangular court or artificial lake for the jubilee of the king , some 1000 <unk> long and 400 <unk> wide , amounting to c . 525 m × 231 m ( 1 @,@ <unk> ft × <unk> ft ) . The court was located within the precincts of a palace built for the ceremonies of the " sed " festival , which was probably located in the vicinity of his pyramid . Another decree addressed to Senedjemib Inti and later inscribed on the walls of his mastaba records the decoration of a chapel of Hathor in the palace of the king . This chapel was most likely built during his reign . 
