The Monastery of Saint Thaddeus is an ancient Armenian monastery in the mountainous area of West Azerbaijan Province, Iran. Also known as Kara Kilise (the “Black Church”) it is located about 20 kilometers from the town of Chaldiran. The monastery and its distinctive Armenian conical roofs are visible from long distances.
In July 2008, the Monastery of Saint Thaddeus was added to UNESCO’s World Heritage List, along with two other Armenian monuments in the same province: the Monastery of Saint Stepanos and the Chapel of Dzordzor.
These edifices – the oldest of which, St Thaddeus, dates back to the 7th century – are examples of the outstanding universal value of the Armenian architectural and decorative traditions. They bear testimony to very important interchanges with the other regional cultures, in particular the Byzantine, Orthodox, and Persian. Situated on the south-eastern fringe of the main zone of the Armenian cultural space, the monasteries constituted a major centre for the dissemination of that culture in the region. They are the last regional remains of this culture that are still in a satisfactory state of integrity and authenticity. Furthermore, as places of pilgrimage, the monastic ensembles are living witnesses of Armenian religious traditions through the centuries.
According to the tradition of the Armenian Apostolic Church, Saint Thaddeus, also known as Saint Jude, (not to be confused with Judas Iscariot), evangelized the region of Armenia and Persia. Thaddeus suffered martyrdom in Armenia, according to the same tradition, and is revered as an apostle of the Armenian Church. Legend has it that a church dedicated to him was first built on the present site in AD 68.
Notable details
According to Armenian Church tradition, the Apostles Thaddeus and Bartholomew traveled through Armenia in AD 45 to preach the word of God, where many people were converted and numerous secret Christian communities were established.
The ancient Christian historian Moses of Khorene told the following story, considered a legend by most modern historiographers. Thaddeus converted King Abgar V of Edessa. After his death, the Armenian kingdom was split into two parts. His son Ananun crowned himself in Edessa, while his nephew Sanaruk ruled in Armenia. About AD 66, Ananun gave the order to kill Saint Thaddeus in Edessa. The king’s daughter Sandokht, who had converted to Christianity, was martyred with Thaddeus. Her tomb is said to be located near the Qara Kelisa.
Reference:
https://en.wikipedia.org/wiki/St._Thaddeus_Monastery
https://whc.unesco.org/en/list/1262/
http://www.persiantourismguide.com/2016/07/29/st-thaddeus-monastery/
https://www.jerusalem-lospazioltre.it/st-thaddeus-monastery-armeninan-church-iran/