Where was the Battle of Köse Dağ=
The Encyclopaedia of Islam states that Köse Dağ is a “land-corridor some 50 miles/80 km. to the north-west of Sīwās” and, under “Kaykhusraw II” in the same work, “between Erzindjan and Sivas.” Cahen in Pre-Ottoman Turkey locates the battle in “the defile of Köse Dagh, in the province of Erzinjān.” My cherished Turkish atlas, Köy Köy Türkiye: Yol atlası (Istanbul 2006), puts Kösedağ Geçidi (Köse Dağ Pass) to the south of Gümüşhane and well to the north of Erzincan. In 13th century terms, this would be close to the lands of the Empire of Trebizond and nowhere near the caravan route between Sivas and Erzincan. Can anyone produce a credible source in any language that offers more precision? Thanks