Arqakaghni monastery

Arqakaghni monastery (Armenian: Արքակաղնի վանք), was an Armenian monastery in the western part of Adana province of modern Turkey, which lies 9 km southeast of Mamestia, a city in the east of Cilician plain. Built in 1122 AD, it ceased functioning as a monastery after the Armenian genocide which began in 1915.

Arqakaghni (or Arqakaghin), which in Armenian language means King oak, because the monastery was surrounded by oak trees.

Hachoyakatar (Armenian: Հաճոյակատար), which in Armenian language literally means darling ridge, but is identified with Mother of God.

The monastery consisted of several churches, and lay in a forest of oaks, plane and olive trees. The main church was called as Armenian: Surp Astvatzatzin which in Armenian language means Saint Mother of God.

Arqakaghni monastery was founded in 1122 near Mopsuestia, an ancient city in Cilician Armenia, as the seat of Mopsuestia's bishop. It also served as:

A rich storage of rare medieval Armenian books and manuscripts

The creating house of manuscripts and hand-written books