The eparchy was established as the Orthodox Eparchy of Halych suffragan to Metropolitan of Kiev at some time during the mid 12th century, with its see originally located in Halych. In 1303 it was elevated to metropolitan status and held such status during several periods of the 14th century, until after 1401 the title of the vacated province was moved to the Metropolitan of Kyiv. Following the 14th century Galicia–Volhynia Wars, the diocese was secured after the Roman Catholic Archdiocese of Lviv.