Akçakale is a village in the Çıldır District, Ardahan Province, Turkey.Köy , Turkey Civil Administration Departments Inventory. Retrieved 15 January 2023. Its population is 205 (2021), and is populated by Karapapakhs. The village is located on the north-eastern shore of Lake Çıldır.
The ancient name of the village of Akçakale is Tetrtsikhe. Tetrtsikhe (თეთრციხე), a Georgian place name, means "white castle".Kristine Sharashidze, "სამხრეთ საქართველოს ისტორიის მასალები XV-XVI სს.", Tbilisi, 1961, p. 44. This place name was translated into Turkish as "Ağca Kala" (اغجە قلعە), and over time it became Akçakale.გურჯისტანის ვილაიეთის დიდი დავთარი: გამოკვლევა: წიგნი III), Sergi Jikia, Tbilisi, 1947-1958, 3 column, III. column (1958), pp. 392.
References