Marzgat was a village in the territory of the Zangezur uezd of the former Yelizavetpol (Ganja) governorate, later in the former Mehri (Meghri) district, and present-day Syunik province. It was located 12-14 km to the southeast of the township of Meghri, on the left bank of the Araz River and near the village of Aldere. Another name for the village was “Marzkit”.

The village was was solely inhabited by Azerbaijanis: 54 in 1831, 255 in 1873, 301 in 1886, 281 in 1897, 766 in 1904 and 751 Azerbaijanis in 1914. The Azerbaijanis were attacked, massacred or ousted from the village by Armenian armed formations in 1918. After the establishment of Soviet power in present-day Armenia, the surviving inhabitants managed to return to their historical and ethnic lands in 1923-1924. The village was inhabited by 34 Azerbaijanis in 1926, 29 in 1931. The village was abolished after its inhabitants had been removed to the village of Aldara due to the collectivization. At present, it lies in ruins.

The toponym was coined by combining the words “marz” meaning “a line or boundary that separates fields, gardens or orchards” and “kat/gat” meaning in Turkic “a settlement, a house, a village, a town, a fortress”.