When Ishak Beys son, Suleyman who dominated in Divrigi had died, his son, Seyfeddin Sehinshah replaced him. Sehinhah was successful in the fights against the Christians. He had been submissive to the Seljuk Sultan, Kilic Arslan II and the Sultan Suleymanshah. However, in the period of Melik Salih who had been the last bey of this dynasty, Sultan Keykubat I captured the lands of this bey principality and Mengucuk Bey Principality was abolished thereof.
Seyfeddin Sehinshah (died in 1197) who was one of the beys of Divrigi branch had been submissive to Turkey Seljuks State. It has been understood from the inscription in his mausoleum that Turkish titles and names such as Alp, Kutlug, Tugrul and Tegin, etc. had been used in that period.
Mengucuk beys had constructed lots of works of art and some of these works and particularly those that had been built in Divrigi have survived until today. One of these works is Kale Camii (mosque) in Divrigi and it had been constructed by Sahin-shah b. Suleyman in the years of 1180-81. The famous Ulu Camii in the same town had been constructed by Ahmed Shah from Mengucuklu bey principality in the years of 1228-89. The doors of this mosque are great masterpieces in respect of the history of art. The pulpit of the mosque of Ulu Camii and one of the doors of the fort were constructed by Ahmed-shah. One of the works pertaining to the Mengucuklu principality is Darüşşifa (mental hospital) that had been constructed contiguous to the mosque of Ulu Camii by Turan Melek who had been the daughter of Behram Shah.