Holy See of Cilicia

• First Sis era, 267-301: According to the order of Catholicoi, *St. Gregory I the Enlightener (also known as Gregory the Illuminator) was seated in Sis 267-301 before moving to Etchmiadzin in 301 where he continued in office until 325.
• In 485 AD, the Catholicosate was transferred to the new capital of Armenia Dvin. In the 10th century it moved from Dvin to Dzoravank and then to Aghtamar (927 AD), to Arghina (947 AD) and to Ani (992 AD)
• Sivas era, 1058–1062
• Tavbloor era, 1062–1066
• Dzamendav (Zamidia, now Zamantı) era, 1066–1116
• Dzovk (Present aka Island of Gölcük and under the lake of Hazar), era, 1116–1149
• Hromgla (now Halfeti) era, 1149–1293
• Second Sis era, 1293-1930 (with the Catholicosate of All Armenians returned to Etchmiadzin in 1441)
• Antelias, Lebanon era, since 1930 - having transferred there from Sis in Cilicia in the aftermath of the Armenian genocide.

The origin of the Armenian Church dates back to the Apostolic age and according to the ancient tradition was established by St. Thaddeus and St. Bartholomew. In 301 AD, Christianity was officially accepted by the Armenians as the state religion.[3]

The city of Sis (modern-day Kozan, Adana, Turkey) was the center of the Catholicosate of the Great House of Cilicia for more than six centuries, starting in 1293 when the Catholicosate moved from Hromgla to Sis. The monastery of St. Sophia of Sis, home of the Catholicosate, dominates the town in early 20th-century photographs. During the Armenian genocide, in 1915, the Armenian population in Cilicia was mostly destroyed.[4]

The chair of the Armenian Catholicosate in Sis (today Kozan)

In 1922 the American Committee for Relief in the Near East established an orphanage in Antilias for survivors of the genocide. It continued operating until 1928. After the foundation's Executive Committee was petitioned in 1929 by Sahak II, in 1930 the now-vacant buildings of the orphanage were leased to the Cilicia Catholicosate for a period of five years to be used as a seat for the Catholicosate and a seminary for training priests and teachers. The foundation also agreed to contribute $6000-$7000 yearly towards running costs.[5]

(in parentheses, the residence of the Prelate / Archbishop / Bishop)

• Canada
  • Armenian Prelacy of Canada

• United States of America
  • Armenian Prelacy of the Eastern United States
  • Armenian Prelacy of the Western United States

• Ontario
  • St. Mary Armenian Apostolic Church, Toronto, Ontario

• Lebanon
  • Armenian Diocese of Lebanon, in Beirut
• Syria
  • Armenian Diocese of Beroea, in Aleppo
• Cyprus
  • Armenian Diocese of Cyprus, in Nicosia
    • Nicosia
      • Sourp Asdvadzadzin church (1981).
      • Old Sourp Asdvadzadzin church (1308), as of 1964 under Turkish occupation.
      • Sourp Boghos chapel (1892).
      • Sourp Haroutiun chapel (1938).
      • Sourp Amenapergitch chapel (1995).
  • Famagusta
  • Ganchvor church (1346), as of 1964 under Turkish occupation.
  • Larnaca
  • Sourp Stepanos church (1909).
  • Limassol
  • Sourp Kevork church (1939).

• Iran
  • Armenian Diocese of Isfahan, in New Julfa
  • Armenian Diocese of Atrpatakan, in Tabriz

• 
  A khatchkar on the premises
• 
  Aram I
• 
  Partial view of the Catholicosate complex on the Mediterranean Sea in Antelias
• 
  Saint Gregory the Illuminator Cathedral (1940)
• 
  Interior of the St. Gregory the Illuminator Cathedral
• 
  Memorial chapel to the Armenian genocide at the Catholicosate premises in Antelias
• 
  The Veharan, the residence of the Catholicos in Antelias, Lebanon
• 
  Holy Mother of God Church (Sourp Asdvadzadzin) at the seminary in Bikfaya

• Armenian Apostolic Church
• Mother See of Holy Etchmiadzin
• List of Armenian Catholicoi of Cilicia

• Stopka, Krzysztof (2016). Armenia Christiana: Armenian Religious Identity and the Churches of Constantinople and Rome (4th-15th century). Kraków: Jagiellonian University Press. ISBN 9788323395553.

• Official site of the Armenian Catholicosate of Cilicia