The Yunus Emre Camisi, 1349, the oldest building in town, from the Karamanoğlu period. The Wikipedia has some information about this dynasty: Beylik of Karaman or of Karamanoğlu (Karamanoğulları in Turkish plural), also called the Karamanid Dynasty or the Karamanids, was an Anatolian Turkish Beylik state centered in south-central Anatolia, around the present-day Karaman Province. From the 13th century until its fall in 1467, Karamanoğlu was one of the most powerful states in Anatolia.
Curiously I could speak with the imam in my own language, Dutch, as he had lived in Vlaardingen till he was 12.