It is exempt to the Holy See, specifically to the Congregation for the Oriental Churches and is not part of any ecclesiastical province.
The ordinariate was established on December 21, 1925, by Pope Pius XI[1] to serve Armenian Catholics who arrived in Greece during the First World War.
Between January 7, 2003, and March 21, 2015, the Armenian bishop of Isfahan (Iran) was the Apostolic Administrator of the Ordinariate.
The Ordinariate extends its jurisdiction over the Armenian Catholics of the whole Greece.
[citation needed] Its cathedral is the Armenian Church of St. Gregory the Illuminator, in the episcopal see and Greek capital Athens.