Although Mehmed occupied Karaman in 1468, he was unable to subjugate a number of Turkoman tribes living in the mountains which extended to the Mediterranean coast. These tribes were not subdued for the next fifty years, and from time to time rose in revolt around pretenders to the throne of Karamanids. After the death of the ruler of Karamanids a civil war began among his sons in which Uzun Hasan, ruler of the Akkoyunlu, also became involved. After some time Mehmed marched into the area and annexed the Karamanids to the Ottoman Empire.