At the beginning of the XIVth century, after the end of the reign of the Chobanid dynasty, the principality of Candarids began to dominate Kastamonu region and continued to exist until 1461. Reconstruction works carried out by the Chobanids in this region also continued during the Candarids. As a result of these works, many monuments of Turkish-Islamic civilization were created in Kastamonu and its environs. One of them is the Turnali Mosque, built by Candar-oghlu Ali Bey, the son of Suleiman Pasha, the founder of the principality of Candarids. In the mosque’s waqf certificate of 733/1333, a condition was introduced for khatim reading (i.e. reading all fascicules of Koran from beginning to finish) on Fridays. Another name for the Turnali precincts, historically associated with the Azdavay district, is Bereketli. Today the Bereketli village is subordinate to the Aghli district. The historical mosque built by Candar-oghlu Ali Bey has not survived to the present day. Over time, it was destroyed and re-built. During the field researches conducted in 2016-2017, we several times visited this mosque in the village of Bereketli, and there we found 58 Koranic manuscript fascicules from the XIVXIXth centuries. In the course of our research, we determined that these fascicules were related to the reading of the khatim, which was reflected in the waqf certificate of Candar-oghlu Ali Bey. We have determined that the oldest date in these Koranic fascicules is 789/1387, and the last date in them is 1271/1855. We believe that these findings will help to determine the development of the waqf tradition under the Candarids and the Ottomans in Kastamonu province, the level of calligraphy and book art here, the names of scholars and scribes working in this region, and briefly, they will play a role in studying the socio-cultural history of this region.