Kayqubadiyya, was a palace built by the Rum Sultan Kayqubad I between 1224 and 1226.^[1] Located northwest of Kayseri, the place is now called Kiybad Ciftligi and sits near the plain of Mashhad.^[2] As a place to review the troops, the road, which proceeds past the palace, had been in use since pre-Roman times.^[2]

The palace was the favorite residence of Kayqubad I, and it was here that he received the capitulation of Malik al-Din Dawudshah, lord of Erzincan.^[2] In 1237, Kayqubad was holding a banquet at Kayqubadiyya and was poisoned and died.^[2][3] His son, Kaykhusraw II would ascend the throne at Kayqubadiyya^[2] following the execution of his brothers, Rukn al-Din and Kilic Arslan.^[3]

The palace was just one of many architectural foundations and monuments initiated by Kayqubad I.^[2] The site was excavated in 1964.^[2]