He retired from his post in January 2021 and was appointed Pontifical envoy-at-large by Karekin II, Catholicos of All Armenians.

Martirosyan later worked in Yeghegnut village school as a Russian language teacher, after which he was drafted to the Soviet army.

The Armenian forces marked their first major victory on 8–9 May 1992, when they took over Shusha, the historic center of the region.

[7] During the hostilities, Ghazanchetsots Cathedral, the seat of Martirosyan's diocese, was shelled by Azerbaijani forces.

Martirosyan compared the shelling to actions of the Islamic State and held a prayer in the damaged cathedral days later.

[11] On 21 January 2021, it was announced that Archbishop Pargev was retiring from the post of Primate of the Diocese of Artsakh, and instead would serve as Catholicos Karekin II's pontifical envoy-at-large.

He was succeeded by Bishop Vrtanes Abrahamyan, who previously held the post of spiritual leader of the Armed Forces of Armenia.