The sultans and other rulers built palaces. They ruled as vassals of Golkonda sultans. Rare delicacies were brought to royal court as gifts from sultans and royal envoys. Kaftans were worn by the sultans of the Ottoman Empire. Unlike many other Ottoman sultans, Abdul Hamid II visited distant countries. They advise their respective sultans or governors. The Empire prospered under the rule of a line of committed and effective Sultans. All of the later Ayyubid sultans of Egypt were his descendants. And the Burji Mamluk Sultans in Egypt from the 14th until the 16th century. All construction was ordered by the Ottoman governors of Jerusalem and not the sultans themselves. In 1260, control passed to the Mamluk sultans of Egypt. Treatment of Christian subjects varied greatly under the rule of the Ottoman Sultans. Abdul Hamid wrote poetry, following on the footsteps of many other Ottoman sultans. He received support from Ottoman Sultans such as Suleiman II and Mehmed IV. The tughras were the calligraphic seals or signatures used by Ottoman sultans.