Antalya in the end of the 11th century in the hands of the Turks, which has a strong defense opportunities in terms of position. In 1097 the city was again taken over by the Byzantine after the First Crusade. Turks came to Antalya in the first half of the 12th century and started to be influential in the region. In 1148 II. Crusader writers, who came here during the Crusade, stated that the Turks had come to the vicinity of the city and therefore the people could not plant their fertile fields. That's why the people in the city were able to meet their food needs by sea.
After the Battle of 1176 Miryokefalon, the Turks began to acquire Anatolia. II. Kılıç Arslan strived for the state to have a strong foundation. II. Kılıç Arslan sent his sons to various parts of Anatolia for this purpose. His youngest son, Gıyaseddin Keyhüsrev, was sent to the castle and its vicinity in Borgulu (now Uluborlu), which he conquered in the 1180s. II. Kılıç Arslan besieged Antalya in 1182, but could not get the city.
On March 5, 1207, Antalya was captured by the Seljuks. Immediately after the delivery of the city, arrangements were made, a shipyard was built and the center of the organization in Uluborlu in the north was moved to Antalya.
However, the first Seljuk rule in Antalya was quite short. The Seljuks, who had no experience of a city that could get help from the sea, lost the city when the Christians attacked and killed most of the Turks. There are two views on the causes of this loss in Antalya. First, after the death of Gıyaseddin Keyhüsrev (1211) and the struggle of the princes of Seljuks, the city may have been lost; The second one is to go to the conquest of Sinop in 1214 with the tip troops of Ertokuş, the commander of the Antalya region, and the possibility that the city might have fallen when the city was weakened militarily.
