It was consecrated on 4 May 1991 by Catholicos Karekin II of the Armenian Catholicosate of Cilicia. The memorial complex served as church, museum, monument, archive centre and exhibition.[1] It was under the direct administration of the Armenian Prelacy, Diocese of Aleppo. Every year, on 24 April, tens of thousands of Armenian pilgrims from all over the world visited the Der Zor complex to commemorate the genocide victims, with the presence of their religious leaders.