political influence, existing along other beyliks and states in their era. Having reigned for about 170 years, Jandarids were quite advanced in architecture, cultural and social life and welfare. Also, many books in Turkish were written during their reign by court scientists and writers, including poems, books on medicine, chemistry, social sciences, and translations from Arabic and Persian. Many architectural structures have remained from the Jandarid era in the region, including hammams, caravanserais, numerous mosques, inns, religious schools (madrassas) and libraries. Economy The 14th century geographer al-Umari notes that the seat of the beylik, Kastamonu was one of the most prominent provinces in that region, and that Sinop was one of the most important ports in the Black Sea where the Genoese managed a warehouse. These lay on a crucial trade route leading to the interior of Anatolia. The nearby province Sivas was then inhabited by many Genoese merchants, transporting the goods that would arrive from the east and the south to their ports in Trabzon, Samsun and Sinop. Venetian archives document close financial ties and trading existing between the Jandarids and the city states of Venice and Genoa. Kastamonu was also rich in natural resources such as iron ore and copper, which were important industrial raw materials. In their trade with the Genoese, Jandarids used copper coins they minted bearing the image of two fish, and the inscription Dârü's-saâde-i Sinop ("The palace of Sinop"). Military Jandarids had a light cavalry corps of 25,000. This vast military power had often contributed to the Ottoman campaigns in Rumelia as well as in Anatolia, including the siege of Constantinople. Being neighbors with the Byzantines, Jandarids aided to campaigns and raids here while preventing them to proceed further towards other beyliks. Jandarids also possessed a shipyard in Sinop that equipped them with a strong naval force. The size of this force is unknown, however, it is known that this force was used in an attack to the Genoese outpost Kefe (Theodosia today, in Crimea, Ukraine). Rulers See also Karamanids Ramadanids Aydinids Sarukhanids Hamidids References External links http://www.dallog.com/beylikler/candaroglu.htm CANDAROGULLARI BEYLIGI Anatolian beyliks States and territories established in 1292 History of Kastamonu Province History of Sinop Province History of Karabük Province ja:チャンダルル家