The castle functioned as both a fortified estate house and a guardian along the strategic route between the Het‛umid castle at Lampron (Namrun Kalesi) and the Cilician Gates. It was one of the many dozens of fortifications within the medieval Armenian Kingdom of Cilicia. The fort of Sinap is located approximately six kilometers northeast of Lampron on the gentle slope of a partially forested agricultural valley. The name Sinap means corner in old Turkish.