The Candar dynasty (Modern Turkish: Candaroğulları), Candarid dynasty, Beylik of Candar (Candaroğulları Beyliği, Candar Beyliği) or House of Candar, also known as the Isfendiyar dynasty (İsfendiyaroğulları), Beylik of Isfendiyar (İsfendiyaroğulları Beyliği, İsfendiyar Beyliği) or Beylik of Sinop is an Oghuz Turkic princely Anatolian dynasty that reigned in the territories corresponding to the present-day provinces of Eflani, Kastamonu, Sinop, Zonguldak, Bartın, Karabük, Samsun, Bolu, Ankara and Çankırı in the Republic of Türkiye from 1292 to 1461. The region is known in Western literature as Paphlagonia, a name applied to the same geographical area during the Roman period. The dynasty and principality, whose founder was Şemseddin Yaman Candar Bey, was incorporated into the Ottoman Empire by Sultan Mehmed II in 1461. Descended from the distinguished Kayı branch of Oghuz Turks, the dynasty began when sultan Mesud II awarded the province of Eflani to Şemseddin Yaman Candar, a senior commander in the imperial armed forces, in gratitude for rescuing him from Mongol captivity. The province had previously been under the rule of the Chobanids. Following the death of Şemseddin Yaman Candar, his son Süleyman I conquered the neighbouring province of Kastamonu and annexed Safranbolu and Sinop, formerly ruled by the descendants of Mu‘in al-Din Suleyman. Süleyman then appointed his son Ibrahim I as governor of Sinop, while his second son Ali was appointed governor of Safranbolu. Süleyman reigned under the authority of the Ilkhanate, the Mongols of Persia, until the death of the ruler Abu Sa'id. Following the death of Süleyman I, his sons Ibrahim I and Ali fought for the throne. In 1339 Ibrahim was victorious and took over the rule of Kastamonu. Upon his death, his cousin Adil replaced him (1346–1361). When Adil died, his son Kötürüm Bayezid became bey. Bayezid fought twice with Kadi Burhan al-Din, the ruler of the Sivas region, and in 1383 lost Kastamonu to one of his own sons, Süleyman II, who received military support from the Ottoman sultan Murad I.